Television is a telecommunication system for broadcasting and receiving moving pictures and sound over a distance. The term has come to refer to all the aspects of television programming and transmission as well. BlackBerry 7100t Telecommunication refers to communication over long distances. ... This article does not cite its references or sources. ... This article does not cite its references or sources. ...

Braun HF 1, Germany, 1958

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Television

Download high resolution version (480x640, 18 KB) Wikipedia does not have an article with this exact name. ... Download high resolution version (480x640, 18 KB) Wikipedia does not have an article with this exact name. ... 1958 (MCMLVIII) was a common year starting on Wednesday of the Gregorian calendar. ... Image File history File links Commons-logo. ... The Wikimedia Commons (also called Commons or Wikicommons) is a repository of free content images, sound and other multimedia files. ...

History

The development of television technology can be partitioned along two lines: those developments that depended upon both mechanical and electronic principles, and those which are purely electronic. From the latter descended all modern televisions, but these would not have been possible without discoveries and insights from the mechanical systems.

The word television is a hybrid word, created from both Greek and Latin. Tele- is Greek for "far", while -vision is from the Latin visio, meaning "vision" or "sight". It is often abbreviated as TV or the telly. A word that has one part derived from one language and another part derived from a different language is etymologically called hybrid. ... Latin is an ancient Indo-European language originally spoken in the region around Rome called Latium. ... Visual perception is one of the senses, consisting of the ability to detect light and interpret (see) it as the perception known as sight or naked eye vision. ... Visual perception is one of the senses, consisting of the ability to detect light and interpret (see) it as the perception known as sight or naked eye vision. ... It has been suggested that Acronym and initialism be merged into this article or section. ...

Electromechanical television

Main article: Mechanical television

The German student Paul Gottlieb Nipkow proposed and patented the first electromechanical television system in 1885. Nipkow's spinning disk design is credited with being the first television image rasterizer. However, it wasn't until 1907 that developments in amplification tube technology made the design practical. Meanwhile, Constantin Perskyi had coined the word television in a paper read to the International Electricity Congress at the International World Fair in Paris on August 25, 1900. Perskeyi's paper reviewed the existing electromechanical technologies, mentioning the work of Nipkow and others. This schematic shows the circular paths traced by the holes in a Nipkow disk. ... This article needs to be cleaned up to conform to a higher standard of quality. ... In engineering, electromechanics combines electromagnetism and mechanics. ... Constantin Perskyi was a Russian scientist who is credited with coining the word television in a paper read (in French) to the 1900 Paris World Exhibitions 1st International Congress of Electricity. ... The Exposition Universelle of 1900 was a worlds fair held in Paris, France, to celebrate the achivements of the past century and to accelerate development into the next. ... The Eiffel Tower has become a symbol of Paris throughout the world. ... August 25 is the 237th day of the year in the Gregorian Calendar (238th in leap years), with 128 days remaining. ... 1900 (MCM) is a common year starting on Monday. ...

A modern 82" (208 cm) LCD television.

In 1911, Boris Rosing and his student Vladimir Kosma Zworykin created a television system that used a mechanical mirror-drum scanner to transmit, in Zworykin's words, "very crude images" over wires to the electronic Braun tube (cathode ray tube) in the receiver. Moving images were not possible because, in the scanner, "the sensitivity was not enough and the selenium cell was very laggy." Zworykin later went to work for RCA to build a purely electronic television, the design of which was eventually found to violate patents by Philo Taylor Farnsworth. Image File history File links An 82 LCD Television on display. ... Image File history File links An 82 LCD Television on display. ... LCD redirects here. ... Boris Lvovich Rosing (Russian: ) (1869 – 1933) was a Russian scientist and inventor in the field of television. ... Vladimir Kosma Zworykin (Russian: (July 30, 1889 - July 29, 1982) was a pioneer of television technology. ... Cathode ray tube employing electromagnetic focus and deflection Cutaway rendering of a color CRT The cathode ray tube or CRT, invented by Karl Ferdinand Braun, is the display device that was traditionally used in most computer displays, video monitors, televisions and oscilloscopes. ... General Name, Symbol, Number selenium, Se, 34 Chemical series nonmetals Group, Period, Block 16, 4, p Appearance gray, metallic luster Atomic mass 78. ... RCA, formerly an initialism for the Radio Corporation of America, is now a trademark used by two companies for products descended from that common ancestor: Thomson SA, which manufactures consumer electronics like RCA-branded televisions, DVD players, video cassette recorders, direct broadcast satellite decoders, camcorders, audio equipment, telephones, and related... This article needs cleanup. ...

On March 25, 1925, Scottish inventor John Logie Baird gave a demonstration of televised silhouette images at Selfridge's Department Store in London. But if television is defined as the transmission of live, moving, half-tone (grayscale) images, and not silhouette or still images, Baird achieved this privately on October 2, 1925, and gave the world's first public demonstration of a working television system to members of the Royal Institution and a newspaper reporter on January 26, 1926 at his laboratory in London. Unlike later electronic systems with several hundred lines of resolution, Baird's vertically scanned image, using a scanning disc embedded with a double spiral of lenses, had only 30 lines, just enough to reproduce a recognizable human face. March 25 is the 84th day of the year in the Gregorian calendar (85th in leap years). ... 1925 (MCMXXV) was a common year starting on Thursday (link will take you to calendar). ... Scottish Executive - official site of the Scottish Executive Scottish Parliament - official site of The Scottish Parliament BBC Scotland - Scottish history, news and travel pages from BBC The Gazetteer for Scotland - Extensive guide to the places and people of Scotland, by the Royal Scottish Geographical Society and University of Edinburgh Scotland... John Logie Baird John Logie Baird (August 13, 1888 – June 14, 1946) was a Scottish engineer, who is best known for being the first person to demonstrate a working television. ... Selfridges is a chain of department stores in the United Kingdom. ... Part of the London skyline viewed from the South Bank London is the most populous city in the European Union, with an estimated population on 1 January 2005 of 7. ... The musical interval of a half step, semitone, or minor second is the relationship between the leading tone and the first note (the root or tonic) in a major scale. ... October 2 is the 275th day (276th in leap years) of the year in the Gregorian Calendar, with 90 days remaining. ... 1925 (MCMXXV) was a common year starting on Thursday (link will take you to calendar). ... The Royal Institution of Great Britain was set up in 1799 by the leading British scientists of the age, including Henry Cavendish and its first president George Finch, the 9th Earl of Winchilsea, for diffusing the knowledge, and facilitating the general introduction, of useful mechanical inventions and improvements; and for... January 26 is the 26th day of the year in the Gregorian Calendar. ... 1926 (MCMXXVI) was a common year starting on Friday (link will take you to calendar). ... Image resolution describes the detail an image holds. ...

In 1928 Baird's company (Baird Television Development Company / Cinema Television) broadcast the first transatlantic television signal, between London and New York, and the first shore to ship transmission. He also demonstrated an electromechanical colour, infrared (dubbed "Noctovision"), and stereoscopic television, using additional lenses, disks and filters. In parallel he developed a video disk recording system dubbed "Phonovision"; a number of the Phonovision[1] recordings, dating back to 1927, still exist. In 1929 he became involved in the first experimental electromechanical television service in Germany. In 1931 he made the first live transmission, of the Epsom Derby. In 1932 he demonstrated ultra-short wave television. Baird's electromechanical system reached a peak of 240 lines of resolution on BBC television broadcasts in 1936, before being discontinued in favor of a 405 line all-electronic system. Image of a small dog taken in mid-infrared (thermal) light (false color) Infrared (IR) radiation is electromagnetic radiation of a wavelength longer than that of visible light, but shorter than that of microwave radiation. ... Stereoscopy, stereoscopic imaging or 3-D (three-dimensional) imaging is a technique to create the illusion of depth in a photograph, movie, or other two-dimensional image, by presenting a slightly different image to each eye. ... Epsom Derby, Théodore Géricault, 1821. ... Corporate logo of the British Broadcasting Corporation The British Broadcasting Corporation (BBC) is the national public service broadcaster of the United Kingdom (see British television). ...

In the U.S., Charles Francis Jenkins was able to demonstrate on June 13, 1925, the transmission of the silhouette image of a toy windmill in motion from a naval radio station to his laboratory in Washington, using a lensed disc scanner with 48 lines per picture, 16 pictures per second. AT&T's Bell Telephone Laboratories transmitted half-tone images of transparencies in May 1925. But Bell Labs gave the most dramatic demonstration of television yet on April 7, 1927, when it field tested reflected-light television systems using small-scale (2 by 2.5 inches) and large-scale (24 by 30 inches) viewing screens over a wire link from Washington to New York City, and over-the-air broadcast from Whippany, New Jersey. The subjects, which included Secretary of Commerce Herbert Hoover, were illuminated by a flying spot beam and scanned by a 50-aperture disc at 16 pictures per second. For other uses, see United States (disambiguation) and US (disambiguation). ... Charles Francis Jenkins (August 22, 1867 _ June 5, 1934) was a pioneer of early cinema and one of the inventors of television, though he used mechanical rather than electronic technologies. ... June 13 is the 164th day of the year in the Gregorian calendar (165th in leap years), with 201 days remaining. ... 1925 (MCMXXV) was a common year starting on Thursday (link will take you to calendar). ... ... AT&T Inc. ... Bell Telephone Laboratories or Bell Labs was originally the research and development arm of the United States Bell System, and was the premier corporate facility of its type, developing a range of revolutionary technologies from telephone switches to specialized coverings for telephone cables, to the transistor. ... The musical interval of a half step, semitone, or minor second is the relationship between the leading tone and the first note (the root or tonic) in a major scale. ... April 7 is the 97th day of the year in the Gregorian calendar (98th in leap years). ... 1927 (MCMXXVII) was a common year starting on Saturday (link will take you to calendar). ... ... The construction of the Empire State Building, 1930. ... State nickname: The Garden State Official languages None defined, English de facto Capital Trenton Largest city Newark Governor Richard Codey (D) Acting, Outgoing Jon Corzine (D) (Governor-Elect) Senators Jon Corzine (D) (Outgoing) Bob Menendez (D) (named as Corzines replacement) Frank Lautenberg (D) Area  - Total  - % water Ranked 47th 22... The office of the U.S. Secretary of Commerce in the mid-20th century. ... Herbert Clark Hoover (August 10, 1874 – October 20, 1964) the 31st President of the United States (1929-1933). ...

Electronic television

An American family watching television in the 1950s.

Although the discoveries of Nipkow, Rosing, Baird and others were extraordinary, little of their technology is used in modern television. By 1934, all electromechanical television systems were outmoded, although electromechanical broadcasts continued on some stations until 1939. Download high resolution version (688x640, 52 KB)Source: http://geekphilosopher. ... Download high resolution version (688x640, 52 KB)Source: http://geekphilosopher. ...

A.A. Campbell-Swinton wrote a letter to Nature on the 18 June 1908 describing his concept of electronic television using the cathode ray tube, which had been invented in 1897 by the German physicist and Nobel prize winner Karl Ferdinand Braun. He proposed using an electron beam in both the camera and the receiver, which could be steered electronically to produce moving pictures. He lectured on the subject in 1911 and displayed circuit diagrams, but no one, including Swinton, knew how to realize the design. Although his system was never built, the cathode ray tube did come to be used to display images in almost all television sets and computer monitors until the invention of the LCD panel. Alan Archibald Campbell-Swinton (1863 - 1930) was a consulting electrical engineer born in Edinburgh. ... Nature is one of the oldest and most reputable scientific journals, first published on 4 November 1869. ... June 18 is the 169th day of the year in the Gregorian Calendar (170th in leap years), with 196 days remaining. ... 1908 (MCMVIII) is a leap year starting on Wednesday (link will take you to calendar). ... Cathode ray tube employing electromagnetic focus and deflection Cutaway rendering of a color CRT The cathode ray tube or CRT, invented by Karl Ferdinand Braun, is the display device that was traditionally used in most computer displays, video monitors, televisions and oscilloscopes. ... This article does not cite its references or sources. ... Karl Ferdinand Braun by Naeem Qasai Karl Ferdinand Braun (June 6, 1850 - April 20, 1918) was a German physicist, born in Fulda. ... LCD redirects here. ...

A fully electronic system was first achieved by Philo Taylor Farnsworth on September 7, 1927, although the low-resolution, light-insensitive camera tube limited the image to a plate of glass painted black, with a straight line etched across it, rotated in front of a bright carbon arc lamp. Seven years later, on August 25, 1934, at the Franklin Institute in Philadelphia, Farnsworth gave the world's first public demonstration of a working, all-electronic television system, with 220 lines per picture, 30 pictures per second. Over a three week period, vaudeville acts, athletic and sports demonstrations, politicians, and hundreds of ordinary citizens were captured on Farnsworth's cameras in the open air and simultaneously shown on his receiving sets. This article needs cleanup. ... September 7 is the 250th day of the year (251st in leap years). ... 1927 (MCMXXVII) was a common year starting on Saturday (link will take you to calendar). ... August 25 is the 237th day of the year in the Gregorian Calendar (238th in leap years), with 128 days remaining. ... 1934 (MCMXXXIV) was a common year starting on Monday (link will take you to calendar). ... The Franklin Institute is the memorial to Benjamin Franklin, that serves to perpetuate his legacy; the museum contains many of Franklins personal effects. ... Independence Hall, as it appears today. ...

Farnsworth, a Mormon farm boy from Rigby, Idaho, first envisioned his system at age 14. He discussed the idea with his high school chemistry teacher, who could think of no reason why it would not work (Farnsworth would later credit this teacher, Justin Tolman, as providing key insights into his invention). He continued to pursue the idea at Brigham Young Academy (now Brigham Young University). At age 21, he demonstrated a working system at his own laboratory in San Francisco. His breakthrough freed television from reliance on spinning discs and other mechanical parts. All modern picture tube televisions descend directly from his design. Mormon is a colloquial term used to refer to members of most of the sects of the Latter Day Saint movement, members of a religion which was founded in the 1830s. ... Rigby is a city located in Jefferson County, Idaho. ... Name Brigham Young University Location (main campus) Provo, UT 84602 Established October 16, 1875 Community Urban Type Private coeducational Classification Parochial Religion Owned by the LDS Church Enrollment 32,400 Faculty 2,100 President Cecil O. Samuelson Nickname Cougars Mascot Cosmo the Cougar School Colors Dark blue and white (was...

Vladimir Kosma Zworykin is also sometimes cited as the father of electronic television because of his invention of the iconoscope in 1923 and his invention of the kinescope in 1929. His design was one of the first to demonstrate a television system with all the features of modern picture tubes. His previous work with Rosing on electromechanical television gave him key insights into how to produce such a system, but his (and RCA's) claim to being its original inventor was largely invalidated by three facts: a) Zworykin's 1923 patent presented an incomplete design, incapable of working in its given form (it was not until 1933 that Zworykin achieved a working implementation), b) the 1923 patent application was not granted until 1938, and not until it had been seriously revised, and c) courts eventually found that RCA was in violation of the television design patented by Philo Taylor Farnsworth, whose lab Zworykin had visited while working on his designs for RCA. Vladimir Kosma Zworykin (Russian: (July 30, 1889 - July 29, 1982) was a pioneer of television technology. ... The iconoscope was invented by Vladimir Zworykin in 1923, essencially a tube for television transmission used in the first cameras. ... The term kinescope originally referred to a type of early television picture tube. ... This article needs cleanup. ...

The controversy over whether it was first Farnsworth or Zworykin who invented modern television is still hotly debated today. Some of this debate stems from the fact that while Farnsworth appears to have gotten there first as an inventor, RCA brought television sets to market before Farnsworth, and it was RCA employees who first wrote the history of television. Even though Farnsworth eventually won the legal battle over this issue, he was never able to fully capitalize financially on his invention.

Color television

Most television researchers appreciated the value of color image transmission, with an early patent application in Russia in 1889 for a mechanically-scanned color system showing how early the importance of color was realized. John Logie Baird demonstrated the world's first color transmission on July 3, 1928, using scanning discs at the transmitting and receiving ends with three spirals of apertures, each spiral with filters of a different primary color; and three light sources at the receiving end, with a commutator to alternate their illumination. John Logie Baird John Logie Baird (August 13, 1888 – June 14, 1946) was a Scottish engineer, who is best known for being the first person to demonstrate a working television. ... July 3 is the 184th day of the year (185th in leap years) in the Gregorian calendar, with 181 days remaining. ... 1928 (MCMXXVIII) was a leap year starting on Sunday (link will take you to calendar). ... For an electrical switch that periodically reverses the current see commutator (electric) In mathematics, the commutator gives an indication of how poorly a certain binary operation fails to be commutative. ...

Color television in the United States had a protracted history due to conflicting technical systems vying for approval by the Federal Communications Commission for commercial use. Mechanically scanned color television was demonstrated by Bell Laboratories in June 1929 using three complete systems of photoelectric cells, amplifiers, glow-tubes, and color filters, with a series of mirrors to superimpose the red, green, and blue images into one full color image. The FCCs official seal. ... Bell Telephone Laboratories or Bell Labs was originally the research and development arm of the United States Bell System, and was the premier corporate facility of its type, developing a range of revolutionary technologies from telephone switches to specialized coverings for telephone cables, to the transistor. ... A solar cell, a form of photovoltaic cell, is a device that uses the photoelectric effect to generate electricity from light, thus generating solar power (energy). ...

In the electronically scanned era, the first color television demonstration was on February 5, 1940, when RCA privately showed to members of the FCC at the RCA plant in Camden, New Jersey, a television receiver producing images in color by a field sequential color system. CBS began non-broadcast color experiments using film as early as August 28, 1940, and live cameras by November 12. The CBS "field sequential" color system was partly mechanical, with a disc made of red, blue, and green filters spinning inside the television camera at 1,200 rpm, and a similar disc spinning in synchronization in front of the cathode ray tube inside the receiver set. RCA's later "dot sequential" color system had no moving parts, using a series of dichroic mirrors to separate and direct red, green, and blue light from the subject through three separate lenses into three scanning tubes, and electronic switching that allowed the tubes to send their signals in rotation, dot by dot. These signals were sorted by a second switching device in the receiver set and sent to red, green, and blue picture tubes, and combined by a second set of dichroic mirrors into a full color image. RCA, formerly an initialism for the Radio Corporation of America, is now a trademark used by two companies for products descended from that common ancestor: Thomson SA, which manufactures consumer electronics like RCA-branded televisions, DVD players, video cassette recorders, direct broadcast satellite decoders, camcorders, audio equipment, telephones, and related... CBS (Columbia Broadcasting System) is a major television network and radio broadcaster in the United States. ... August 28 is the 240th day of the year in the Gregorian Calendar (241st in leap years), with 125 days remaining. ... 1940 (MCMXL) was a leap year starting on Monday (link will take you to calendar). ... November 12 is the 316th day of the year (317th in leap years) in the Gregorian Calendar, with 49 days remaining. ... In optics, the term dichroic has two related but distinct meanings. ...

The first field test (i.e., broadcast) of color television was by NBC (owned by RCA) on February 20, 1941. CBS began daily color field tests on June 1, 1941. These color systems were not compatible with existing black and white television sets, and as no color television sets were available to the public at this time, viewership of the color field tests was limited to RCA and CBS engineers and the invited press. The War Production Board halted the manufacture of television and radio equipment for civilian use from April 1, 1942 to October 1, 1945, limiting any opportunity to introduce color television to the general public. The National Broadcasting Company or NBC is an American television broadcasting company based in New York Citys Rockefeller Center. ... February 20 is the 51st day of the year in the Gregorian Calendar. ... For the movie, see 1941 (film) 1941 (MCMXLI) was a common year starting on Wednesday (link will take you to calendar). ... The War Production Board (WPB) was established in 1942 by executive order of Franklin D. Roosevelt. ... April 1 is the 91st day of the year (92nd in leap years) in the Gregorian calendar, with 274 days remaining. ... This article is about the year. ... October 1 is the 274th day of the year (275th in Leap years). ... 1945 (MCMXLV) was a common year starting on Monday (link will take you to calendar). ...

The post-war development of color television was dominated by three systems competing for approval by the FCC as the U.S. color broadcasting standard: CBS's field sequential system, which was incompatible with existing black and white sets without an adaptor; RCA's dot sequential system, which in 1949 became compatible with existing black and white sets; and CTI's system (also incompatible with existing black and white sets), which used three camera lenses, behind which were color filters that produced red, green, and blue images side by side on a single scanning tube, and a receiver set that used lenses in front of the picture tube (which had sectors treated with different phosphorescent compounds to glow in red, green, or blue) to project these three side by side images into one combined picture on the viewing screen. Color Television, Inc. ...

After a series of hearings beginning in September 1949, the FCC found the RCA and CTI systems fraught with technical problems, inaccurate color reproduction, and expensive equipment, and so formally approved the CBS system as the U.S. color broadcasting standard on October 11, 1950. An unsuccessful lawsuit by RCA delayed the world's first network color broadcast until June 25, 1951, when a musical variety special titled simply Premiere was shown over a network of five east coast CBS affiliates. Viewership was again extremely limited: the program could not be seen on black and white sets, and Variety estimated that only thirty prototype color receivers were available in the New York area. Regular color broadcasts began that same week with the daytime series The World Is Yours and Modern Homemakers. October 11 is the 284th day of the year (285th in leap years). ... 1950 (MCML) was a common year starting on Sunday (link will take you to calendar). ... June 25 is the 176th day of the year (177th in leap years) in the Gregorian Calendar, with 189 days remaining. ... 1951 (MCMLI) was a common year starting on Monday; see its calendar. ... Variety is a daily magazine for the entertainment industry. ... The World Is Yours was the worlds first color television series, making its debut on June 26, 1951, on five stations of the CBS television network in the eastern United States. ... Modern Homemakers was the worlds second color television series, making its debut on June 27, 1951, on five stations of the CBS television network in the eastern United States. ...

While the CBS color broadcasting schedule gradually expanded to twelve hours per week (but never into prime time), and the color network expanded to eleven affiliates as far west as Chicago, its commercial success was doomed by the lack of color receivers necessary to watch the programs, the refusal of television manufacturers to create adaptor mechanisms for their existing black and white sets, and the unwillingness of advertisers to sponsor broadcasts seen by almost no one. In desperation, CBS bought a television manufacturer, and on September 20, 1951, production began on the first and only CBS color television model. But it was too little, too late. Only 200 sets had been shipped, and only 100 sold, when CBS pulled the plug on its color television system on October 20, 1951, and bought back all the CBS color sets it could to prevent law suits by disappointed customers. Prime time is the block of programming on television during the middle of the evening. ... ... October 20 is the 293rd day of the year (294th in leap years) in the Gregorian Calendar, with 72 days remaining. ... 1951 (MCMLI) was a common year starting on Monday; see its calendar. ...

Starting before CBS color even got on the air, the U.S. television industry, represented by the National Television System Committee, worked in 1950-1953 to develop a color system that was compatible with existing black and white sets and would pass FCC quality standards, with RCA developing the hardware elements. When CBS testified before Congress in March 1953 that it had no further plans for its own color system, the path was open for the NTSC to submit its petition for FCC approval in July 1953, which was granted in December. The first publicly announced experimental TV broadcast of a program using the NTSC-RCA "compatible color" system was an episode of NBC's Kukla, Fran and Ollie on August 30, 1953. NTSC is the analog television system in use in Korea, Japan, United States, Canada and certain other places, mostly in the Americas (see map). ... Kukla, Fran and Ollie was an early television show using puppets, originally created for children but soon watched by more adults than children. ... August 30 is the 242nd day of the year in the Gregorian Calendar (243rd in leap years), with 123 days remaining. ... 1953 (MCMLIII) is a common year starting on Thursday. ...

NBC made the first coast-to-coast color broadcast when it covered the Tournament of Roses Parade on January 1, 1954, with public demonstrations given across the United States on prototype color receivers. A few days later Admiral brought out the first commercially made color television set using the RCA standards, followed in March by RCA's own model. Television's first prime time network color series was The Marriage, a situation comedy broadcast live by NBC in the summer of 1954. NBC's anthology series Ford Theatre became the first color filmed series that October. Perhaps one of the United States of Americas most important annual festivities, The Tournament of Roses Parade is the 116-year-old traditional parade generally held on New Years Day in Pasadena, California ,8 miles north of downtown Los Angeles. ... January 1 is the first day of the calendar year in both the Julian and Gregorian calendars. ... 1954 (MCMLIV) was a common year starting on Friday of the Gregorian calendar. ... The Marriage was the first prime-time network television series to be broadcast in color. ... Anthology may also mean a Alien Ant Farm album ANThology, see Anthology (AAF Album) An anthology is a collection of literary works, originally of poems, but in recent years its usage has broadened to be applied to collections of short stories and comic strips. ...

NBC was naturally at the forefront of color programming because its parent company RCA manufactured the most successful line of color sets in the 1950s. CBS and ABC, which were not affiliated with set manufacturers, and were not eager to promote their competitor's product, dragged their feet into color, with ABC delaying its first color series (The Flintstones and The Jetsons) until 1962. The Du Mont network, although it did have a television-manufacturing parent company, was in financial decline by 1954 and was dissolved two years later. Thus the relatively small amount of network color programming, combined with the high cost of color television sets, meant that as late as 1964 only 3.1 percent of television households in the U.S. had a color set. NBC provided the catalyst for rapid color expansion by announcing that its prime time schedule for fall 1965 would be almost entirely in color (the exception being I Dream of Jeannie). All three broadcast networks were airing full color prime time schedules by the 1966–67 broadcast season. (It is also worth noting that, while at least one show, CBS' The Lucy Show, did not broadcast its episodes in color until the start of the 1965-66 broadcast season, that show's producers began filming in color in 1963, with the thought that they would command more money when sold into syndication.) But the number of color television sets sold in the U.S. did not exceed black and white sales until 1972, which was also the first year that more than fifty percent of television households in the U.S. had a color set. The American Broadcasting Company (ABC) is a television and radio network in the United States. ... The Flintstones, a Hanna-Barbera animated series, is one of the most successful animated television series of all time, originally running in American prime time for six seasons, from 1960 to 1966, on the ABC network. ... The Jetsons was an animated prime-time television series produced by Hanna-Barbera Productions from 1962 to 1963. ... DuMont may be used to refer to one of several things: Allen B. DuMont was a U.S. inventor, industrialist, and pioneer in the early years of television. ... I Dream of Jeannie, created by Sidney Sheldon. ... This was the television schedule on all three networks for the fall season beginning in September 1966. ... Lucille Ball in still from a 1966 episode of The Lucy Show The Lucy Show was Lucille Balls followup show to I Love Lucy. ... |} This was the television schedule on all three networks for the fall season beginning in September 1965. ...

In Mexico, Guillermo González Camarena (1917–1965), invented the early color television transmission system. He received patents for color television systems in 1940 (U.S. Patent 1942 (2296019), 1960 and 1962. The 1942 patent was for a mechanically scanned color filter adapter for an existing monochrome electronic transmission system.

In August 31, 1946 he sent his first color transmission from his lab in the offices of The Mexican League of Radio Experiments in Lucerna St. #1, in Mexico City. The video signal was transmitted at a frequency of 115 MHz. and the audio in the 40 metre band. Mexico City (Spanish: Ciudad de México) is the name of a megacity located in the Valley of Mexico (Valle de México), a large valley in the high plateaus (altiplano) at the center of Mexico, about 2,240 metres (7,349 feet) above sea-level, surrounded on most sides...

European color television was developed somewhat later and was hindered by a continuing division on technical standards. Having decided to adopt a higher-definition 625-line system for monochrome transmissions, with a lower frame rate but with a higher overall bandwidth, Europeans could not directly adopt the U.S. color standard, which was widely perceived as wanting anyway, because of its tint control problems. There was also less urgency, since there were fewer commercial motivations, European television broadcasters being predominantly state-owned at the time. The refresh rate (or vertical refresh rate, vertical scan rate) is the maximum number of frames that can be displayed on a monitor (or television) in a second, expressed in hertz. ... Because the NTSC color television standard is susceptible to color errors, there is a tint control on NTSC television sets, which allows the image hue to be corrected. ...

As a consequence, although work on various color encoding systems started already in the 1950s, with the first SECAM patent being registered in 1956, many years had passed till the first broadcasts actually started in 1967. Unsatisfied with the performance of NTSC and of initial SECAM implementations, the Germans unveiled PAL (phase alternating line) in 1963, staying closer to NTSC but borrowing some ideas from SECAM. An important advantage of PAL was the automatic color correction which partially relied on the imperfections of the human eye. The French continued with SECAM, notably involving Russians in the development. SÉCAM (Séquentiel couleur à mémoire, French for sequential colour with memory) is an analog color television system first used in France. ... For other meanings of PAL see PAL (disambiguation). ...

The first regular colour broadcasts in Europe were by BBC2 beginning on July 1, 1967, using PAL. Germans did their first broadcast in September (PAL), while the French in October (SECAM). PAL was eventually adopted by West Germany, the UK, Australia, New Zealand, much of Africa, Asia and South America, and most Western European countries except France. BBC Two (or BBC2 as it was formerly styled) was the second UK television station to be aired by the BBC. // History The channel was scheduled to begin at 7:20 pm on April 20, 1964 and show an evening of light entertainment, starting with the comedy show The Alberts... July 1 is the 182nd day of the year (183rd in leap years) in the Gregorian Calendar, with 183 days remaining. ... 1967 (MCMLXVII) was a common year starting on Sunday of the Gregorian calendar. ... // Etymology World map showing Africa (geographically) The name Africa came into Western use through the Romans, who used the name Africa terra — land of the Afri (plural, or Afer singular) — for the northern part of the continent, as the province of Africa with its capital Carthage, corresponding to modern-day... Asia is the largest and most populous of the Earths continents. ... South America South America is a continent crossed by the equator, with most of its area in the Southern Hemisphere. ... Western Europe is distinguished from Eastern Europe by differences of history and culture rather than by geography. ...

In addition to France and Luxembourg, SECAM was adopted by Soviet Union, much of Eastern Europe, much of Africa and of the Middle East. Both systems broadcast on UHF frequencies, the VHF being used for legacy black and white, 405 lines in UK or 819 lines in France, till the beginning of the eighties. Pre-1989 division between the West (grey) and Eastern Bloc (orange) superimposed on current national boundaries: Russia (dark orange), other countries of the former USSR (medium orange) and other former communist regimes (light orange). ... // Etymology World map showing Africa (geographically) The name Africa came into Western use through the Romans, who used the name Africa terra — land of the Afri (plural, or Afer singular) — for the northern part of the continent, as the province of Africa with its capital Carthage, corresponding to modern-day... This article is about the radio frequency. ... Very high frequency (VHF) is the radio frequency range from 30 MHz (wavelength 10 m) to 300 MHz (wavelength 1 m). ...

It should be noted that some British television programmes, particularly those made by or for ITC Entertainment, were made in colour before the introduction of colour television to the UK, for the purpose of sales to US networks. The first British show to be made in colour was the drama series The Adventures of Sir Lancelot (1956-57), which was initially made in black and white but later shot in colour for sale to the NBC network in the United States.-1... The Adventures of Sir Lancelot was a British television series of the 1950s, produced by Sapphire Films for ITC Entertainment and screened on the ITV network. ... The National Broadcasting Company or NBC is an American television broadcasting company based in New York Citys Rockefeller Center. ...

In Japan, NHK introduced color television in the year 1960. NHK (日本放送協会, Nihon Hōsō Kyōkai), or the Japan Broadcasting Corporation, is Japans public broadcaster. ...

Broadcast television

Television antenna on a rooftop

The first regularly scheduled television service in the United States began on July 2, 1928. The Federal Radio Commission authorized C.F. Jenkins to broadcast from experimental station W3XK in a suburb of Washington, D.C. But for at least the first eighteen months, only silhouette images from motion picture film were broadcast due to the narrow 10kHz bandwidth allotted by the FRC. Download high resolution version (512x768, 29 KB)Television antenna File links The following pages link to this file: Television Categories: GFDL images ... Download high resolution version (512x768, 29 KB)Television antenna File links The following pages link to this file: Television Categories: GFDL images ... July 2 is the 183rd day of the year (184th in leap years) in the Gregorian Calendar, with 182 days remaining. ... 1928 (MCMXXVIII) was a leap year starting on Sunday (link will take you to calendar). ... The Federal Radio Commission (FRC) was a government body that regulated radio use in the United States from its creation in 1927 until its replacement by the Federal Communications Commission (FCC) in 1935. ... Charles Francis Jenkins (August 22, 1867 _ June 5, 1934) was a pioneer of early cinema and one of the inventors of television, though he used mechanical rather than electronic technologies. ... ... Bandwidth is a measure of frequency range. ...

General Electric's experimental station in Schenectady, New York, on the air sporadically since January 13, 1928, was able to broadcast reflected-light, 48-line images via shortwave as far as Los Angeles, and by September was making four television broadcasts weekly. The General Electric Company, or GE (NYSE: GE) is a multinational technology and services company. ... Union Colleges Nott Memorial, one of the most recognized buildings in Schenectady Schenectady is a city located in Schenectady County, New York, United States, of which it is the county seat. ... January 13 is the 13th day of the year in the Gregorian calendar. ... 1928 (MCMXXVIII) was a leap year starting on Sunday (link will take you to calendar). ... Shortwave radio operates between the frequencies of 3,000 kHz and 30 MHz (30,000 kHz) and came to be referred to as such in the early days of radio because the wavelengths associated with this frequency range were shorter than those commonly in use at that time. ... The City of Los Angeles (from Spanish; Los Ángeles) is the second-largest city in the United States in terms of population, as well as one of the worlds most important economic, cultural, and entertainment centers. ...

CBS's New York City station W2XAB began broadcasting the first regular seven days a week television schedule in the United States on July 21, 1931, with a 60-line electromechanical system. The first broadcast included Mayor Jimmy Walker, the Boswell Sisters, Kate Smith, and George Gershwin. The service ended in February 1933. CBS (Columbia Broadcasting System) is a major television network and radio broadcaster in the United States. ... The construction of the Empire State Building, 1930. ... July 21 is the 202nd day (203rd in leap years) of the year in the Gregorian Calendar, with 163 days remaining. ... 1931 (MCMXXXI) is a common year starting on Thursday. ... This article is about the 1926 Mayor of New York. ... The Boswell Sisters on the cover of the reissue album collection Thats How Rhythm Was Born The Boswell Sisters were a singing group that attained national prominence in the USA in the 1930s. ... Kate Smith on the cover of a posthumous 1991 collection 16 Most Requested Songs Kate Smith (Kathryn Elizabeth Smith) (May 1, 1907 – June 17, 1986) was an American singer best known for her rendition of Irving Berlins God Bless America. She greeted audiences with Hello, everybody! and signed off... George Gershwin photograph by Edward Steichen in 1927. ...

By 1935, electromechanical television broadcasting had ceased in the United States except for a handful of stations run by public universities that continued to 1939. The Federal Communications Commission saw television in the continual flux of development with no consistent technical standards, hence all such stations in the U.S. were granted only experimental and not commercial licenses, hampering television's economic development. Just as importantly, Philo Farnsworth's 1934 demonstration of an all-electronic system pointed the direction of television's future. The FCCs official seal. ...

On June 15, 1936, Don Lee Broadcasting began a month-long demonstration of all-electronic television in Los Angeles on W6XAO (later KTSL) with a 300-line image from motion picture film. RCA demonstrated in New York City a 343-line electronic television broadcast, with live and film segments, to its licensees on July 7, 1936, and made its first public demonstration to the press on November 6. By April 1939, regularly scheduled 441-line electronic television broadcasts were available in New York City and Los Angeles, and by November on General Electric's station in Schenectady. With the adoption of NTSC television engineering standards in 1941, the FCC saw television ready for commercial licensing, with the first such licenses issued to NBC and CBS owned stations in New York on July 1, 1941, followed by Philco's station in Philadelphia. June 15 is the 166th day of the year in the Gregorian calendar (167th in leap years), with 199 days remaining. ... 1936 (MCMXXXVI) was a leap year starting on Wednesday (link will take you to calendar). ... KCBS-TV, CBS2 Los Angeles is CBS owned and operated television station in the Los Angeles area, and is the West Coast flagship station of the CBS network. ... RCA, formerly an initialism for the Radio Corporation of America, is now a trademark used by two companies for products descended from that common ancestor: Thomson SA, which manufactures consumer electronics like RCA-branded televisions, DVD players, video cassette recorders, direct broadcast satellite decoders, camcorders, audio equipment, telephones, and related... July 7 is the 188th day of the year (189th in leap years) in the Gregorian Calendar, with 177 days remaining. ... 1936 (MCMXXXVI) was a leap year starting on Wednesday (link will take you to calendar). ... November 6 is the 310th day of the year (311th in leap years) in the Gregorian Calendar, with 55 days remaining. ... NTSC is the analog television system in use in Korea, Japan, United States, Canada and certain other places, mostly in the Americas (see map). ... July 1 is the 182nd day of the year (183rd in leap years) in the Gregorian Calendar, with 183 days remaining. ... For the movie, see 1941 (film) 1941 (MCMXLI) was a common year starting on Wednesday (link will take you to calendar). ... Philco, the Philadelphia Electric Company (formerly known as the Spencer Company), was a pioneer in early radio and television and former employer of Philo Farnsworth, inventor of cathode ray tube television. ... Independence Hall, as it appears today. ...

Electromechanical broadcasts began in Germany in 1929, but were without sound until 1934. Network electronic service started on March 22, 1935, on 180 lines using only telecine transmission of film or an intermediate film system. Live transmissions began on January 15, 1936. The Berlin Summer Olympic Games were televised, using both direct television and intermediate film cameras, to 28 public television rooms in Berlin and Hamburg in August 1936. The Germans had a 441-line system on the air in February 1937, and during World War II brought it to France, where they broadcast off the Eiffel Tower. March 22 is the 81st day of the year in the Gregorian Calendar (82nd in Leap years). ... 1935 (MCMXXXV) was a common year starting on Tuesday (link will take you to calendar). ... Telecine (pronounced teli-SEEN or teli-SINI) is the process of transferring motion picture film to a video format, such as television, or a machine used to complete this process. ... The intermediate film system was a television process used in 1932-1937 in which motion picture film was processed almost immediately after it was exposed in a camera, then scanned by a scanner, and transmitted over the air. ... January 15 is the 15th day of the year in the Gregorian calendar. ... 1936 (MCMXXXVI) was a leap year starting on Wednesday (link will take you to calendar). ... To meet Wikipedias quality standards, this article or section may require cleanup. ... Poster for the 1920 Summer Olympics in Antwerp. ... Hamburgs central promenade Jungfernstieg on the Alster lake, between 1900 and 1914 Hamburg is Germanys second largest city (after Berlin) and, with the Hamburg Harbour, its principal port. ... Combatants Allied Powers Axis Powers Commanders {{{commander1}}} {{{commander2}}} Strength {{{strength1}}} {{{strength2}}} Casualties 17 million military deaths 7 million military deaths World War II, also known as the Second World War, was a mid-20th century conflict that engulfed much of the globe and is accepted as the largest and deadliest... The Tower at sunrise The Eiffel Tower (French: Tour Eiffel; IPA pronunciation: , eye-full English; , a-fell French) is an iron tower built on the Champ de Mars, beside the River Seine in Paris. ...

The first British television broadcast was made by Baird Television's electromechanical system over the BBC radio transmitter in September 1929. Baird provided a limited amount of programming five days a week by 1930. On August 22, 1932, BBC launched its own regular service using Baird's 30-line electromechanical system, continuing until September 11, 1935. On November 2, 1936 the BBC began broadcasting a dual-system service, alternating on a weekly basis between Marconi-EMI's 405-line standard and Baird's improved 240-line standard, from Alexandra Palace in London, making the BBC Television Service (now BBC One) the world's first regular high-definition television service. The corporation decided that Marconi-EMI's electronic picture gave the superior picture, and the Baird system was dropped in February 1937. The outbreak of the Second World War caused the BBC service to be suspended on September 1, 1939, resuming from Alexandra Palace on June 7, 1946. Corporate logo of the British Broadcasting Corporation The British Broadcasting Corporation (BBC) is the national public service broadcaster of the United Kingdom (see British television). ... August 22 is the 234th day of the year in the Gregorian Calendar (235th in leap years), with 131 days remaining. ... 1932 (MCMXXXII) is a leap year starting on Friday. ... Corporate logo of the British Broadcasting Corporation The British Broadcasting Corporation (BBC) is the national public service broadcaster of the United Kingdom (see British television). ... September 11 is the 254th day of the year in the Gregorian calendar (255th in leap years). ... 1935 (MCMXXXV) was a common year starting on Tuesday (link will take you to calendar). ... November 2 is the 306th day of the year (307th in leap years) in the Gregorian Calendar, with 59 days remaining. ... 1936 (MCMXXXVI) was a leap year starting on Wednesday (link will take you to calendar). ... Corporate logo of the British Broadcasting Corporation The British Broadcasting Corporation (BBC) is the national public service broadcaster of the United Kingdom (see British television). ... 405 line is the name of a monochrome analogue television broadcasting system in operation in the UK between 1936 and 1985. ... Alexandra Palace from the east Alexandra Palace was built on a hill in Muswell Hill in North London in 1873 as a public entertainment centre. ... Part of the London skyline viewed from the South Bank London is the most populous city in the European Union, with an estimated population on 1 January 2005 of 7. ... BBC One (or BBC1 as it was formerly styled) is the oldest television station in the world. ... Mushroom cloud from the nuclear explosion over Nagasaki rising 18 km into the air. ... September 1 is the 244th day of the year (245th in leap years). ... 1939 (MCMXXXIX) was a common year starting on Sunday (link will take you to calendar). ... June 7 is the 158th day of the year in the Gregorian calendar (159th in leap years), with 207 days remaining. ... 1946 (MCMXLVI) was a common year starting on Tuesday. ...

The Soviet Union began offering 30-line electromechanical test broadcasts in Moscow on October 31, 1931, and a commercially manufactured television set in 1932. The first experimental transmissions of electronic television took place in Moscow on March 9, 1937, using equipment manufactured and installed by RCA. Regular broadcasting began on December 31, 1938. October 31 is the 304th day of the year (305th in leap years) in the Gregorian Calendar, with 61 days remaining, as the final day of October. ... 1931 (MCMXXXI) is a common year starting on Thursday. ... Moscow (Russian: Москва́, Moskva, IPA: ▶(?)) is the capital of Russia, located on the river Moskva. ... March 9 is the 68th day of the year in the Gregorian Calendar (69th in Leap years). ... 1937 (MCMXXXVII) was a common year starting on Friday (link will take you to calendar). ... RCA, formerly an initialism for the Radio Corporation of America, is now a trademark used by two companies for products descended from that common ancestor: Thomson SA, which manufactures consumer electronics like RCA-branded televisions, DVD players, video cassette recorders, direct broadcast satellite decoders, camcorders, audio equipment, telephones, and related... December 31 is the 365th day of the year (366th in leap years) in the Gregorian Calendar. ... 1938 (MCMXXXVIII) was a common year starting on Saturday (link will take you to calendar). ...

The first regular television transmissions in Canada began in 1952 when the CBC put two stations on the air, one in Montreal, Quebec on September 6, and another in Toronto, Ontario two days later. The Canadian Broadcasting Corporation (CBC), a Canadian crown corporation, is the countrys national radio and television broadcaster. ... City motto: Concordia Salus (Latin: Well-being through harmony) Province Quebec Mayor Gérald Tremblay Area  - % water 500. ... September 6 is the 249th day of the year (250th in leap years). ... Template:Hide = Motto: Template:Unhide = Diversity Our Strength City of Toronto, Ontario, Canadas Location. ... September 8 is the 251st day of the year (252nd in leap years). ...

Early portable television set

The first live transcontinental television broadcast took place in San Francisco, California from the Japanese Peace Treaty Conference on September 4, 1951. In 1958, the CBC completed the longest television network in the world, from Sydney, Nova Scotia to Victoria, British Columbia. Reportedly, the first continuous live broadcast of a breaking news story in the world was conducted by the CBC during the Springhill Mining Disaster which began on October 23 of that year. Wikipedia does not have an article with this exact name. ... Wikipedia does not have an article with this exact name. ... San Franciscos famous fog and famous Golden Gate Bridge. ... Prime Minister Yoshida Shigeru of Japan, gave a speech on Reconciliation and rapport (和解と信頼) in 1951 at San Francisco Peace conference. ... September 4 is the 247th day of the year (248th in leap years). ... 1951 (MCMLI) was a common year starting on Monday; see its calendar. ... Sydney, Nove Scotia, on Cape Breton Island Sydney is a community in Nova Scotia, Canada, and is located on its namesake harbour. ... The arms of Victoria. ... The Springhill Mining Disaster is the term often used to refer to three separate Canadian mining disasters which occurred in 1891, 1956, and 1958 in different mines within the Springhill coal field, in close proximity to the town of Springhill in Cumberland County, Nova Scotia. ... October 23 is the 296th day of the year (297th in leap years) in the Gregorian Calendar, with 69 days remaining. ...

Programming is broadcast on television stations (sometimes called channels). At first, terrestrial broadcasting was the only way television could be distributed. Because bandwidth was limited, government regulation was normal. In the U.S., the Federal Communications Commission allowed stations to broadcast advertisements, but insisted on public service programming commitments as a requirement for a license. By contrast, the United Kingdom chose a different route, imposing a television licence fee on owners of television reception equipment, to fund the BBC, which had public service as part of its Royal Charter. Development of cable and satellite means of distribution in the 1970s pushed businessmen to target channels towards a certain audience, and enabled the rise of subscription-based television channels, such as HBO and Sky. Practically every country in the world now has developed at least one television channel. Television has grown up all over the world, enabling every country to share aspects of their culture and society with others. A television station is a type of broadcast station that broadcasts both audio and video to television receivers in a particular area. ... The FCCs official seal. ... A television licence is an official licence required in some countries for all owners of a television receiver. ... Corporate logo of the British Broadcasting Corporation The British Broadcasting Corporation (BBC) is the national public service broadcaster of the United Kingdom (see British television). ... A Royal Charter is a charter given by a monarch to legitimize an incorporated body, such as a city, company, university or such. ... HBO (Home Box Office) is a premium cable television network. ... British Sky Broadcasting (BSkyB - formerly two companies, Sky Television plc and British Satellite Broadcasting) is a company that operates Sky Digital, the most popular subscription television service in the UK and Ireland. ...

By the late 1980s, 98% of all homes in the U.S. had at least one TV set. On average, Americans watch four hours of television per day. An estimated two-thirds of Americans got most of their news about the world from TV, and nearly half got all of their news from TV. These figures are now estimated to be significantly higher.

Technology

Broadcasting

Look up television in Wiktionary, the free dictionary.

There are many means of distributing television broadcasts, including both analogue and digital versions of: Wikipedia does not have an article with this exact name. ... Wiktionary logo Wiktionary is a sister project to Wikipedia intended to be a free wiki dictionary (including thesaurus and lexicon) in every language. ... There are several broadcast television systems in use in the world today. ...

• Terrestrial television
• Stratovision (From aircraft flying in a loop)
• Satellite television
• Cable television
• MMDS (Wireless cable)

Terrestrial television (also known as over-the-air, OTA, or broadcast television) is the traditional method of television broadcast signal delivery, by radio waves transmitted through open space, usually carrying unencrypted signals. ... Stratovision is an airborne television transmission relay system from aircraft flying at high altitudes. ... Artists impression of a Boeing 601 satellite, as configured for digital television transmission by SES Astra Satellite television is television delivered by way of communications satellites, as compared to conventional terrestrial television and cable television. ... Coaxial cable is often used to transmit cable television into the house Cable television or Community Antenna Television (CATV) (often shortened to cable) is a system of providing television, FM radio programming and other services to consumers via radio frequency signals transmitted directly to people’s televisions through fixed optical... Multichannel multipoint distribution service, also known as MMDS or wireless cable, is a wireless telecommunications technology, used for general-purpose broadband networking or, more commonly, as an alternative method of cable television programming reception. ...

Receiving

Television sets

In television's electromechanical era, commercially made television sets were sold from 1928 to 1934 in the United Kingdom, United States, and Russia. The earliest commercially made sets sold by Baird in the U.K. and the U.S. in 1928 were radios with the addition of a television device consisting of a neon tube behind a mechanically spinning disk (the Nipkow disk) with a spiral of apertures that produced a red postage-stamp size image, enlarged to twice that size by a magnifying glass. The "televisor" was also available without the radio. The Baird televisor sold in 1930-1933 is considered the first mass-produced set, selling about a thousand units. General Name, Symbol, Number neon, Ne, 10 Chemical series noble gases Group, Period, Block 18, 2, p Appearance colorless Atomic mass 20. ... A Nipkow disk is a mechanical, geometrically operating image scanning device (by itself, it performs neither image acquisition or reproduction), invented by Paul Gottlieb Nipkow, which was primarily used as a fundamental component in mechanical television. ...

The first commercially made electronic television sets with cathode ray tubes were manufactured by Telefunken in Germany in 1934, followed by other makers in Britain (1936) and America (1938). The cheapest of the pre-War World II factory-made American sets, a 1938 image-only model with a 3-inch (8 cm) screen, cost US$125, the equivalent of US$1,732 in 2005. The cheapest model with a 12-inch (30 cm) screen was $445 ($6,256). Cathode ray tube employing electromagnetic focus and deflection Cutaway rendering of a color CRT The cathode ray tube or CRT, invented by Karl Ferdinand Braun, is the display device that was traditionally used in most computer displays, video monitors, televisions and oscilloscopes. ... Telefunken is a German radio- and television company, founded in 1903. ... USD redirects here. ... USD redirects here. ...

An estimated 19,000 electronic television sets were manufactured in Britain, and about 1,600 in Germany, before World War II. About 7,000-8,000 electronic sets were made in the U.S. before the War Production Board halted manufacture in April 1942, which resumed in October 1945. The War Production Board (WPB) was established in 1942 by executive order of Franklin D. Roosevelt. ...

Television usage in the United States skyrocketed after World War II with the lifting of the manufacturing freeze, war-related technological advances, the gradual expansion of the television networks westward, the drop in set prices caused by mass production, increased leisure time, and additional disposable income. While only 0.5% of U.S. households had a television set in 1946, 55.7% had one in 1954, and 90% by 1962. In Britain, there were 15,000 television households in 1947, 1.4 million in 1952, and 15.1 million by 1968. Combatants Allied Powers Axis Powers Commanders {{{commander1}}} {{{commander2}}} Strength {{{strength1}}} {{{strength2}}} Casualties 17 million military deaths 7 million military deaths World War II, also known as the Second World War, was a mid-20th century conflict that engulfed much of the globe and is accepted as the largest and deadliest...

For many years different countries used different technical standards. France initially adopted the German 441-line standard but later upgraded to 819 lines, which gave the highest picture definition of any analogue TV system, approximately four times the resolution of the British 405-line system. Eventually the whole of Europe switched to the 625-line PAL standard, once more following Germany's example. Meanwhile in North America the original