 Clivia II FER858A (VEB Rafena, Radeberg, Germany), 1956 Television (often abbreviated to TV, T.V., or more recently, tv) is a widely used telecommunication system for broadcasting and receiving moving pictures and sound over a distance from all around the world. The term may also be used to refer specifically to a television set, programming or television transmission. The word is derived from mixed Latin and Greek roots, meaning "far sight": Greek tele (τῆλε), far, and Latin vision, sight (from video, vis- to see, or to view in the first person). TV may stand for: Television Transvestite Tuvalu (ISO 3166-1 alpha-2 country code; see . ...
Television, formed in New York City in 1973, is an American rock music band. ...
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. ...
Braun in Kronberg (German pronunciation brown, English pronunciation brawn) GmbH is a German consumer products company known for its clean industrial designs. ...
Image File history File linksMetadata Size of this preview: 450 × 600 pixelsFull resolution (1536 × 2048 pixel, file size: 1. ...
Image File history File linksMetadata Size of this preview: 450 × 600 pixelsFull resolution (1536 × 2048 pixel, file size: 1. ...
Copy of the original phone of Alexander Graham Bell at the Musée des Arts et Métiers in Paris Telecommunication is the assisted transmission of signals over a distance for the purpose of communication. ...
Broadcasting is the distribution of audio and/or video signals which transmit programs to an audience. ...
This article is about motion pictures. ...
This article is about audible acoustic waves. ...
A television program (US), television programme (UK) or simply television show is a segment of programming in television broadcasting. ...
In telecommunications, transmission is the act of transmitting electrical messages (and the associated phenomena of radiant energy that passes through media). ...
For other uses, see Latin (disambiguation). ...
Since it first became commercially available from the late 1930s, the television set has become a common household communications device in homes and institutions, particularly in the First World, as a source of entertainment and news. Since the 1970s, video recordings on VCR tapes and later, digital playback systems such as DVDs, have enabled the television to be used to view recorded movies and other programs. The History of television technology can be divided along two lines: those developments that depended upon both mechanical and electronic principles, and those which are purely electronic. ...
The terms First World, Second World, and Third World were used to divide the nations of Earth into three broad categories. ...
For other uses, see Video (disambiguation). ...
DVD (also known as Digital Versatile Disc or Digital Video Disc) is a popular optical disc storage media format. ...
A television system may be made up of multiple components, so a screen which lacks an internal tuner to receive the broadcast signals is called a monitor rather than a television. A television may be built to receive different broadcast or video formats, such as high-definition television, or preferably referred to as (HDTV). HDTV costs more than normal TV but is becoming more available. A tuner is a circuit module or free-standing equipment which detects radio-frequency (RF) signals usually of low amplitude and amplifies them and converts them to a form suitable for further processing. ...
High-definition television (HDTV) means broadcast of television signals with a higher resolution than traditional formats (NTSC, SECAM, PAL) allow. ...
[edit] History -
The History of television technology can be divided along two lines: those developments that depended upon both mechanical and electronic principles, and those which are purely electronic. ...
[edit] Technology Image File history File links No higher resolution available. ...
[edit] Elements of a television system
 OT-1471 Belweder, Poland, 1957
1. power switch / volume 2. brightness 3. pitch 4. vertical synchro 5. horizontal synchro
6. contrast
7. channel tuning
8. channel switch | The elements of a simple broadcast television system are: Image File history File links OTVbelweder-front. ...
Image File history File links OTVbelweder-front. ...
Belweder - front view: Belweder was the brand name of the OT1471 television set, manufactured in Peoples Republic of Poland (PRL) from 1957 to 1960 at the Warszawskie Zakłady Telewizyjne (WZT). ...
Broadcasting is the distribution of audio and/or video signals which transmit programs to an audience. ...
- An image source. This is the electrical signal representing the visual image, and may be from a camera in the case of live images, a video tape recorder for playback of recorded images, or a film chain-telecine-flying spot scanner for transmission of motion pictures (films).
- A sound source. This is an electrical signal from a microphone or from the audio output of a video tape recorder or motion picture film scanner.
- A transmitter, which generates radio signals (radio waves) and encodes them with picture and sound information.
- An antenna coupled to the output of the transmitter for broadcasting the encoded signals.
- An antenna to receive the broadcast signals.
- A receiver (also called a tuner), which decodes the picture and sound information from the broadcast signals, and whose input is coupled to the antenna.
- A display device, which turns the electrical signals into visual images.
- An audio amplifier and loudspeaker, which turns electrical signals into sound waves (speech, music, and other sounds) to accompany the images.
Practical television systems include equipment for selecting different image sources, mixing images from several sources at once, insertion of pre-recorded video signals, synchronizing signals from many sources, and direct image generation by computer for such purposes as station identification. The facility for housing such equipment, as well as providing space for stages, sets, offices, etc., is called a television studio, and may be located many miles from the transmitter. Communication from the studio to the transmitter is accomplished via a dedicated cable or radio system. Sony camera head with Betacam SP dock recorder. ...
A video tape recorder (VTR), is a tape recorder that can record video material. ...
Type of Film island - Film chain A Film chain or Film island is a television - TV camera with one or more projectors aligned into the lens of the camera. ...
Telecine (IPA pronunciation: . Phonetic: tel-e-Sin-ee; tel-e-Sin-a as cine is the same root as in cinema; also tele-seen.) is the process of transferring motion picture film into electronic form, or the machine used in this process. ...
A flying spot scanner uses a high resolution, high light output, low persistance Cathode Ray Tube CRT to scan an image, usually from motion picture film or a slide. ...
For other uses see film (disambiguation) Film refers to the celluliod media on which movies are printed Film — also called movies, the cinema, the silver screen, moving pictures, photoplays, picture shows, flicks, or motion pictures, — is a field that encompasses motion pictures as an art form or as...
Microphones redirects here. ...
A video tape recorder (VTR), is a tape recorder that can record video material. ...
Antenna tower of Crystal Palace transmitter, London A transmitter is an electronic device which, usually with the aid of an antenna, propagates an electromagnetic signal such as radio, television, or other telecommunications. ...
A Yagi-Uda beam antenna Short Wave Curtain Antenna (Moosbrunn, Austria) A building rooftop supporting numerous dish and sectored mobile telecommunications antennas (Doncaster, Victoria, Australia) An antenna is a transducer designed to transmit or receive radio waves which are a class of electromagnetic waves. ...
Antenna tower of Crystal Palace transmitter, London A transmitter is an electronic device which, usually with the aid of an antenna, propagates an electromagnetic signal such as radio, television, or other telecommunications. ...
Broadcasting is the distribution of audio and/or video signals which transmit programs to an audience. ...
A Yagi-Uda beam antenna Short Wave Curtain Antenna (Moosbrunn, Austria) A building rooftop supporting numerous dish and sectored mobile telecommunications antennas (Doncaster, Victoria, Australia) An antenna is a transducer designed to transmit or receive radio waves which are a class of electromagnetic waves. ...
Broadcasting is the distribution of audio and/or video signals which transmit programs to an audience. ...
A tuner is a circuit module or free-standing equipment which detects radio-frequency (RF) signals usually of low amplitude and amplifies them and converts them to a form suitable for further processing. ...
Broadcasting is the distribution of audio and/or video signals which transmit programs to an audience. ...
Audio can mean: Sounding that can be heard. ...
For the British rock band of the same name, see Amplifier (band). ...
For the Marty Friedman album, see Loudspeaker (album) An inexpensive low fidelity 3. ...
This article is about the machine. ...
A television studio is an installation in which television or video productions take place, either for live television, for recording live on tape, or for the acquisition of raw footage for postproduction. ...
Antenna tower of Crystal Palace transmitter, London A transmitter is an electronic device which, usually with the aid of an antenna, propagates an electromagnetic signal such as radio, television, or other telecommunications. ...
Antenna tower of Crystal Palace transmitter, London A transmitter is an electronic device which, usually with the aid of an antenna, propagates an electromagnetic signal such as radio, television, or other telecommunications. ...
Television signals were originally transmitted exclusively via land-based transmitters. The quality of reception varied greatly, dependent in large part on the location and type of receiving antenna. This led to the proliferation of large rooftop antennas to improve reception in the 1960s, replacing set-top dipole or "rabbit ears" antennas, which however remained popular. Antenna rotors, set-top controlled servo motors to which the mast of the antenna is mounted, to enable rotating the antenna such that it points to the desired transmitter, would also become popular. A simple half-wave dipole antenna that a shortwave listener might build. ...
An antenna rotor is motorized device that rotates an outdoor antenna to the required direction of transmission or reception. ...
Small R/C servo mechanism 1. ...
In most cities today, cable television providers deliver signals over coaxial or fiber-optic cables for a fee. Signals can also be delivered by radio from satellites in geosynchronous orbit and received by parabolic dish antennas, which are comparatively large for analog signals, but much smaller for digital. Like cable providers, satellite television providers also require a fee, often less than cable systems. The affordability and convenience of digital satellite reception has led to the proliferation of small dish antennas outside many houses and apartments. Coaxial cable is often used to transmit cable television into the house. ...
Coaxial Cable For the weapon, see coaxial weapon. ...
Fiber-optic communication is a method of transmitting information from one place to another by sending light through an optical fiber. ...
Satellite television is television delivered by way of communications satellites, as compared to conventional terrestrial television and cable television. ...
It has been suggested that this article or section be merged with geostationary orbit. ...
The Parabolic antenna is a high-gain, reflector antenna used for radio, television and data communications, and also for radiolocation (RADAR), on the UHF and SHF frequencies. ...
An analog or analogue signal is any time continuous signal where some time varying feature of the signal is a representation of some other time varying quantity. ...
Digital television (DTV) is a telecommunication system for broadcasting and receiving moving pictures and sound by means of digital signals, in contrast to analog signals used by analog (traditional) TV. DTV uses digital modulation data, which is digitally compressed and requires decoding by a specially designed television set, or a...
Satellite television is television delivered by way of communications satellites, as compared to conventional terrestrial television and cable television. ...
Digital systems may be inserted anywhere in the chain to provide better image transmission quality, reduction in transmission bandwidth, special effects, or security of transmission from reception by non-subscribers. A home today might have the choice of receiving analog or HDTV over the air, analog or digital cable with HDTV from a cable television company over coaxial cable, or even from the phone company over fiber optic lines. On the road, television can be received by pocket sized televisions, recorded on tape or digital media players, or played back on wireless phones (mobile or "cell" phones) over a high-speed or "broadband" internet connection. A digital circuit that acts as a binary clock, hand-wired on a series of breadboards Digital electronics are electronics systems that use digital signals. ...
Bandwidth is the difference between the upper and lower cutoff frequencies of, for example, a filter, a communication channel, or a signal spectrum, and is typically measured in hertz. ...
High-definition television (HDTV) means broadcast of television signals with a higher resolution than traditional formats (NTSC, SECAM, PAL) allow. ...
High-definition television (HDTV) means broadcast of television signals with a higher resolution than traditional formats (NTSC, SECAM, PAL) allow. ...
Coaxial cable is often used to transmit cable television into the house. ...
Coaxial Cable For the weapon, see coaxial weapon. ...
Fiber-optic communication is a method of transmitting information from one place to another by sending light through an optical fiber. ...
Several examples of non-folding mobile phones. ...
A WildBlue Satellite Internet dish. ...
[edit] Display technology - See also: Comparison of display technology, Liquid crystal display television, and Large-screen television technology
Thanks to the advances in display technology, there are now several kinds of video displays used in modern TV sets: Image File history File linksMetadata Download high-resolution version (1000x750, 136 KB) This shows a dv working place of the local German TV station TV Meissen. creator:Thomas Richter File links The following pages on the English Wikipedia link to this file (pages on other projects are not listed): Television...
Image File history File linksMetadata Download high-resolution version (1000x750, 136 KB) This shows a dv working place of the local German TV station TV Meissen. creator:Thomas Richter File links The following pages on the English Wikipedia link to this file (pages on other projects are not listed): Television...
Digital video is a type of video recording system that works by using a digital, rather than analog, of the video signal. ...
This is a comparison of various properties of different display technologies. ...
Liquid crystal display television (LCD TV) is television that uses LCD technology for its visual output. ...
Large-screen television technology developed rapidly in the late 1990’s and 2000’s, and currently the most popular technologies are liquid crystal display (LCD), plasma display, and projection television. ...
- CRT (cathode-ray tube): The most common screens were direct-view CRTs for up to roughly 100 cm (40 inch) (in 4:3 ratio) and 115 cm (45 inch) (in 16:9 ratio) diagonals. These are the least expensive, and are a refined technology that can still provide the best overall picture quality value. As they do not have a fixed native resolution, they are capable of displaying sources with different resolutions at the best possible image quality. The frame rate or refresh rate of a typical NTSC format CRT TV is 29.97 Hz, and for the PAL format, 25 Hz, both are scanned with two fields per frame in an interlaced fashion. A typical NTSC broadcast signal's visible portion has an equivalent resolution of about 640x480 pixels. It actually could be slightly higher than that, but the vertical blanking interval (VBI), allows other signals to be carried along with the broadcast.
- Rear projection (RPTV): Most very large screen TVs (to 254 cm (100 inches) or more) use projection technology. Three types of projection systems are used in projection TVs: CRT-based, LCD-based, and DLP (reflective micromirror chip) -based, D-ILA and LCOS-based. Projection television has been commercially available since the 1970s, but at that time could not match the image sharpness of the CRT; current models are vastly improved, and offer a cost-effective large-screen display.
- Flat panel (LCD or plasma): Modern advances have brought flat panels to TV that use active matrix LCD or plasma display technology. Flat panel LCDs and plasma displays are as little as 25.4 mm (1 inch) thick and can be hung on a wall like a picture or put over a pedestal. Some models can also be used as computer monitors.
- LED technology has become one of the choices for outdoor video and stadium uses, since the advent of bright LEDs and driver circuits. LEDs enable scalable ultra-large flat panel video displays that other technologies may never be able to match in performance.
Each has its pros and cons. Flat panel LCD and plasma displays have a wide viewing angle (around 178 degrees) so they may best suited for a home theatre with a wide seating arrangement. Rear projection screens do not perform well in daylight or well-lit rooms and so are only suited to darker viewing areas. The cathode ray tube or CRT, invented by Karl Ferdinand Braun, is the display device used in most computer displays, video monitors, televisions and oscilloscopes. ...
A diagonal can refer to a line joining two nonadjacent vertices of a polygon or polyhedron, or in contexts any upward or downward sloping line. ...
It has been suggested that this article or section be merged into Liquid crystal display. ...
Frame rate, or frame frequency, is the measurement of the frequency (rate) at which an imaging device produces unique consecutive images called frames. ...
NTSC is the analog television system in use in Canada, Japan, Mexico, the Philippines, South Korea, Taiwan, the United States, and some other countries, mostly in the Americas (see map). ...
For other uses, see PAL (disambiguation). ...
Interlace is a technique of improving the picture quality of a video signal without consuming any extra bandwidth. ...
NTSC is the analog television system in use in Canada, Japan, Mexico, the Philippines, South Korea, Taiwan, the United States, and some other countries, mostly in the Americas (see map). ...
The vertical blanking interval (VBI), also known as the vertical interval or VBLANK, is the time difference between the last line of one frame or field of a raster display, and the beginning of the next. ...
Projected image from a video projector in a home cinema. ...
LCD redirects here. ...
This article is about Digital Light Processing. ...
Liquid crystal on silicon (LCOS or LCoS) is a micro-projection or micro-display technology typically applied in projection televisions. ...
Liquid crystal on silicon (LCOS or LCoS) is a micro-projection or micro-display technology typically applied in projection televisions. ...
Projected image from a video projector in a home cinema. ...
Home theater projection screen (119 in. ...
Image File history File linksMetadata Download high-resolution version (3072x2304, 2724 KB) // Deutsch: Der 3 dimensionale Eindruck des 3D-Filmes wird auf diesem 2 dimensionalen Photo Nicht sichtbar! English: The 3-dimensional effect of the 3D-film is NOT visible on this 2-dimensional photo! Deutsch: Das Bild wurde mit...
Image File history File linksMetadata Download high-resolution version (3072x2304, 2724 KB) // Deutsch: Der 3 dimensionale Eindruck des 3D-Filmes wird auf diesem 2 dimensionalen Photo Nicht sichtbar! English: The 3-dimensional effect of the 3D-film is NOT visible on this 2-dimensional photo! Deutsch: Das Bild wurde mit...
LCD redirects here. ...
An example of a plasma display A plasma display panel (PDP) is a type of flat panel display now commonly used for large TV displays (typically above 37-inch or 940 mm). ...
Flat panel displays encompass a growing number of technologies enabling video displays that are lighter and much thinner than traditional television and video displays using cathode ray tubes, usually less than 10 cm (4 inches) thick. ...
This article does not cite any references or sources. ...
A statue of Henry IV of France on a pedestal Pedestal (from French piedestal, Italian piedestallo, foot of a stall) is a term generally applied to the support of a statue or a vase. ...
A computer display monitor, usually called simply a monitor, is a piece of electrical equipment which displays viewable images generated by a computer without producing a permanent record. ...
“LED†redirects here. ...
Look up daylight in Wiktionary, the free dictionary. ...
[edit] Terminology for televisions Pixel resolution is the amount of individual points known as pixels on a given screen. Use of the word pixel is fairly new, as it only dates to the introduction of the DVD digital display standard. Before the year 2000 horizontal lines of resolution was the standard method of measurement for analog video. For example, a VHS VCR might be described as having 250 lines of resolution as measured across a circle circumscribed in the center of the screen (approximately 440 pixels edge-to-edge). Display standards comparison The display resolution of a digital television or computer display typically refers to the number of distinct pixels in each dimension that can be displayed. ...
A pixel (a contraction of picture element) is one of the many tiny dots that make up the representation of a picture in a computers memory. ...
DVD (also known as Digital Versatile Disc or Digital Video Disc) is a popular optical disc storage media format. ...
A typical resolution of 720×480 means that the television display has 720 pixels across and 480 pixels on the vertical axis. The higher the resolution on a specified display the sharper the image. Contrast ratio is a measurement of the range between the brightest and darkest points on the screen. This article is about the mathematical concept. ...
The higher the contrast ratio, the better looking picture there is in terms of richness, deepness, and shadow detail. The brightness of a picture measures how vibrant and impacting the colors are. Measured in cd / m2 equivalent to the amount of candles required to power the image. Shadows on pavement A shadow is a region of darkness where light is blocked. ...
Brightness is an attribute of visual perception in which a source appears to emit a given amount of light. ...
Look up image in Wiktionary, the free dictionary. ...
On the other hand, the so-called brightness and contrast adjustment controls on televisions and monitors are traditionally used to control different aspects of the picture display.
The brightness control shifts the black point, or shadow level, primarily affecting the contrast ratio or gamma of the image, while the contrast control primarily controls the image intensity or brightness.[1]
[edit] Transmission band There are various bands on which televisions operate depending upon the country. The VHF and UHF signals in bands III to V are generally used. Lower frequencies do not have enough bandwidth available for television. Although the BBC initially used Band I VHF at 45 MHz, this frequency is (in the UK) no longer in use for this purpose. Band II is used for FM radio transmissions. Higher frequencies behave more like light and do not penetrate buildings or travel around obstructions well enough to be used in a conventional broadcast TV system, so they are generally only used for MMDS and satellite television, which uses frequencies from 2 to 12 GHz. TV systems in most countries relay the video as an AM (amplitude-modulation) signal and the sound as a FM (frequency-modulation) signal. An exception is France, where the sound is AM. Very high frequency (VHF) is the radio frequency range from 30 MHz to 300 MHz. ...
Ultra high frequency (UHF) designates a range (band) of electromagnetic waves whose frequency is between 300 MHz and 3. ...
Bandwidth is the difference between the upper and lower cutoff frequencies of, for example, a filter, a communication channel, or a signal spectrum, and is typically measured in hertz. ...
For other uses, see BBC (disambiguation). ...
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. ...
Satellite television is television delivered by way of communications satellites, as compared to conventional terrestrial television and cable television. ...
Amplitude modulation (AM) is a technique used in electronic communication, most commonly for transmitting information via a radio carrier wave. ...
In telecommunications, frequency modulation (FM) conveys information over a carrier wave by varying its frequency. ...
[edit] Aspect ratios Aspect ratio refers to the ratio of the horizontal to vertical measurements of a television's picture. Mechanically scanned television as first demonstrated by John Logie Baird in 1926 used a 7:3 vertical aspect ratio, oriented for the head and shoulders of a single person in close-up. For other uses, see Aspect ratio. ...
Bust of John Logie Baird in Helensburgh. ...
Most of the early electronic TV systems, from the mid-1930s onward, shared the same aspect ratio of 4:3 which was chosen to match the Academy Ratio used in cinema films at the time. This ratio was also square enough to be conveniently viewed on round cathode-ray tubes (CRTs), which were all that could be produced given the manufacturing technology of the time. (Today's CRT technology allows the manufacture of much wider tubes, and the flat-screen technologies which are becoming steadily more popular have no technical aspect ratio limitations at all.) The BBC's television service used a more squarish 5:4 ratio from 1936 to 3 April 1950, when it too switched to a 4:3 ratio. This did not present significant problems, as most sets at the time used round tubes which were easily adjusted to the 4:3 ratio when the transmissions changed. For other uses, see Aspect ratio. ...
The Academy ratio of 1. ...
Cathode ray tube employing electromagnetic focus and deflection Cutaway rendering of a color CRT: 1. ...
Manufacturing (from Latin manu factura, making by hand) is the use of tools and labor to make things for use or sale. ...
By the mid 20th century humans had achieved a mastery of technology sufficient to leave the surface of the Earth for the first time and explore space. ...
For other uses, see BBC (disambiguation). ...
In the early 1950s, movie studios moved towards widescreen aspect ratios such as CinemaScope in an effort to distance their product from television. Although this was initially just a gimmick, widescreen is still the format of choice today and 4:3 aspect ratio movies are rare. Image File history File linksMetadata Download high-resolution version (2272x1704, 429 KB) Taken by me, of a Samsung LE26R41BD. File links The following pages on the English Wikipedia link to this file (pages on other projects are not listed): Television Metadata This file contains additional information, probably added from the...
Image File history File linksMetadata Download high-resolution version (2272x1704, 429 KB) Taken by me, of a Samsung LE26R41BD. File links The following pages on the English Wikipedia link to this file (pages on other projects are not listed): Television Metadata This file contains additional information, probably added from the...
Samsung Electronics (SEC, Hangul:ì‚¼ì„±ì „ìž; KSE: 005930, KSE: 005935, LSE: SMSN, LSE: SMSD) is a South Korean multinational corporation and the worlds largest and leading electronics and information technology company. ...
High-definition television (HDTV) is a digital television broadcasting system with greater resolution than traditional television systems (NTSC, SECAM, PAL). ...
A movie studio is a controlled environment for the making of a film. ...
The inner box (green) is the format used in most pre-1952 films and pre-widescreen television. ...
A Fox logo used to promote the CinemaScope process. ...
A gimmick is a unique or quirky special feature that makes something stand out from its contemporaries. ...
Yet the various television systems were not originally designed to be compatible with film at all. Traditional, narrow-screen movies are projected onto a television camera either so that the top of the screens line up to show facial features, or, for films with subtitles, the bottoms. What this means is that filmed newspapers or long captions filling the screen for explanation are cut off at each end. Similarly, while the frame rate of sound films is 24 per second, the screen scanning rate of the NTSC is 29.97 Hz (per second), which requires a complex scanning schedule. That of PAL and SECAM are 50 Hz, which means that films are shortened (and the sound is offkey) by scanning each frame twice for 25 per second. This article is about the SI unit of frequency. ...
The switch to digital television systems has been used as an opportunity to change the standard television picture format from the old ratio of 4:3 (1.33:1) to an aspect ratio of 16:9 (approximately 1.78:1). This enables TV to get closer to the aspect ratio of modern widescreen movies, which range from 1.66:1 through 1.85:1 to 2.35:1. There are two methods for transporting widescreen content, the most common of which uses what is called anamorphic widescreen format. This format is very similar to the technique used to fit a widescreen movie frame inside a 1.33:1 35 mm film frame. The image is compressed horizontally when recorded, then expanded again when played back. The anamorphic widescreen 16:9 format was first introduced via European PALPlus television broadcasts and then later on "widescreen" DVDs; the ATSC HDTV system uses straight widescreen format, no horizontal compression or expansion is used. Digital television (DTV) is a telecommunication system for broadcasting and receiving moving pictures and sound by means of digital signals, in contrast to analog signals used by analog (traditional) TV. DTV uses digital modulation data, which is digitally compressed and requires decoding by a specially designed television set, or a...
This article is about motion pictures. ...
The process of creating a full screen anamorphic image, also known as a full height anamorphic image, involves taking a 16x9, or 1. ...
PALplus is an extension of the PAL analogue broadcasting system for transmitting 16:9 programs without sacrificing vertical resolution. ...
DVD (also known as Digital Versatile Disc or Digital Video Disc) is a popular optical disc storage media format. ...
“ATSC†redirects here. ...
High-definition television (HDTV) is a digital television broadcasting system with greater resolution than traditional television systems (NTSC, SECAM, PAL). ...
Recently "widescreen" has spread from television to computing where both desktop and laptop computers are commonly equipped with widescreen displays. There are some complaints about distortions of movie picture ratio due to some DVD playback software not taking account of aspect ratios; but this may subside as the DVD playback software matures. Furthermore, computer and laptop widescreen displays are in the 16:10 aspect ratio both physically in size and in pixel counts, and not in 16:9 of consumer televisions, leading to further complexity. This was a result of widescreen computer display engineers' assumption that people viewing 16:9 content on their computer would prefer that an area of the screen be reserved for playback controls, subtitles or their Taskbar, as opposed to viewing content full-screen. Desktop computer with several common peripherals (Monitor, keyboard, mouse, speakers, microphone and a printer) A desktop computer is a computer made for use on a desk in an office or home and is distinguished from portable computers such as laptops or PDAs. ...
For the band, see Laptop (band). ...
In printed material In printed material, a subtitle is an explanatory or alternate title. ...
[edit] Aspect ratio incompatibility The television industry's changing of aspect ratios is not without difficulties, and can present a considerable problem. For other uses, see Aspect ratio. ...
Displaying a widescreen aspect (rectangular) image on a conventional aspect (square or 4:3) display can be shown:
- in "letterbox" format, with black horizontal bars at the top and bottom
- with part of the image being cropped, usually the extreme left and right of the image being cut off (or in "pan and scan", parts selected by an operator or a viewer)
- with the image horizontally compressed
A conventional aspect (square or 4:3) image on a widescreen aspect (rectangular with longer horizon) display can be shown: For the mail collector, see letter box. ...
A 2. ...
- in "pillar box" format, with black vertical bars to the left and right
- with upper and lower portions of the image cut off (or in "tilt and scan", parts selected by an operator)
- with the image vertically compressed
A common compromise is to shoot or create material at an aspect ratio of 14:9, and to lose some image at each side for 4:3 presentation, and some image at top and bottom for 16:9 presentation. In recent years, the cinematographic process known as Super 35 (championed by James Cameron) has been used to film a number of major movies such as Titanic, Legally Blonde, Austin Powers, and Crouching Tiger, Hidden Dragon (see also: Films shot in Super 35). This process results in a camera-negative which can then be used to create both wide-screen theatrical prints, and standard "full screen" releases for television/VHS/DVD which avoid the need for either "letterboxing" or the severe loss of information caused by conventional "pan-and-scan" cropping. A 4:3 image pillarboxed into a 16:9 display The pillar box effect occurs in widescreen video displays when black bars (mattes or masking) are placed on the sides of the image. ...
Super 35 is a motion picture film format that uses exactly the same 35 mm film stock as standard 35mm, but puts a larger image frame on that stock. ...
For other persons named James Cameron, see James Cameron (disambiguation). ...
Titanic is a 1997 American romantic drama film directed, written, and co-produced by James Cameron about the sinking of the RMS Titanic. ...
Legally Blonde is a 2001 comedy film starring Reese Witherspoon, produced by Marc E. Platt for Metro-Goldwyn-Mayer studios and directed by Robert Luketic. ...
The tone or style of this article or section may not be appropriate for Wikipedia. ...
For other uses, see Crouching Tiger, Hidden Dragon (disambiguation). ...
This article does not cite any references or sources. ...
For the mail collector, see letter box. ...
A 2. ...
- Further information: NICAM, MTS, and Zweikanalton
NICAM (known also as NICAM 728, after the 728 kbit/s bitstream it is sent over), Near Instantaneous Companded Audio Multiplex, is a format for digital sound on analogue television transmissions. ...
Multichannel television sound, better known as MTS (often still as BTSC, for the Broadcast Television Systems Committee that created it), is the method of encoding three additional channels of audio into an NTSC-format audio carrier. ...
Zweikanalton (two channel sound) is a television sound transmission system used in Germany and other countries. ...
- Further information: Teletext
A BBC Ceefax page from January 9, 2007. ...
[edit] The end of analog television broadcasting -
Digital television (DTV) is a telecommunication system for broadcasting and receiving moving pictures and sound by means of digital signals, in contrast to analog signals used by analog (traditional) TV. DTV uses digital modulation data, which is digitally compressed and requires decoding by a specially designed television set, or a...
In North America, the basic signal standards since 1941 have been compatible enough that even the oldest monochrome televisions can still receive color broadcasts in 2007. However, the United States Congress has passed a law which requires the cessation of all conventional television broadcast signals by February 2009. If the law is not changed again, then after that date all NTSC standard televisions, with analog-only tuners, will go dark unless fitted with digital ATSC tuners, and the spectrum previously occupied by those analog channels will be auctioned off by the United States' Federal Communications Commission for other uses. The analog cut-off date has been changed by Congress in the past. NTSC is the analog television system in use in Canada, Japan, Mexico, the Philippines, South Korea, Taiwan, the United States, and some other countries, mostly in the Americas (see map). ...
Advance Television Systems Committe (ATSC) tuner allows reception of over the air high definition digital television signals in North America and South Korea. ...
[edit] PAL and SECAM PAL and SECAM are expected not to be broadcast in Europe and Eurasia by the mid-2020s. PAL-M may have a similar decommissioning timeline. For other uses, see PAL (disambiguation). ...
SECAM, also written SÉCAM (Séquentiel couleur à mémoire, French for Sequential Color with Memory), is an analog color television system first used in France. ...
The European Union has recommended its members to have closed down analogue terrestrial television by 2012. Luxembourg and the Netherlands had already completed their closedowns in 2006, and Finland and Sweden will have closed down their analogue broadcasts in 2007. Meanwhile, some countries may have difficulties making the 2012 deadline.
Britain started its programme of switching off analogue transmitters in October 2007. At 2am on Wednesday 17 October 2007 the BBC2 transmitter covering the Whitehaven and Copeland areas (NW England) was turned off. The remaining four analogue channels cease broadcasting in the region on Wednesday 14 November. The original five channels will then only be available in digital form, alongside some 15 additional free to air channels.
[edit] Television add-ons The television was the first consumer mass market for video displays. Today there are many television add-ons including video game consoles, VCRs, Set-top boxes for Cable, Satellite and DVB-T compliant Digital Television reception, DVD players, or Digital Video Recorders (including personal video recorders, PVRs). The add-on market continues to grow as new technologies are developed. Computers, the internet, and even pocket devices such as the iPod provide other ways to consume video content. Computer and video games redirects here. ...
The videocassette recorder (or VCR, more commonly known in the UK and Ireland as the video recorder), is a type of video tape recorder that uses removable videotape cassettes containing magnetic tape to record audio and video from a television broadcast so it can be played back later. ...
A set-top box (STB) or set-top unit (STU) is a device that connects to a television and an external source of signal, turning the signal into content which is then displayed on the television screen. ...
Coaxial cable is often used to transmit cable television into the house. ...
Satellite television is television delivered by way of communications satellites, as compared to conventional terrestrial television and cable television. ...
Digital television (DTV) is a telecommunication system for broadcasting and receiving moving pictures and sound by means of digital signals, in contrast to analog signals used by analog (traditional) TV. DTV uses digital modulation data, which is digitally compressed and requires decoding by a specially designed television set, or a...
DVD (also known as Digital Versatile Disc or Digital Video Disc) is a popular optical disc storage media format. ...
Foxtel IQ, a digital video recorder and a satellite cable set-top box. ...
[edit] New developments | | |
 A long screen television in Korea. | Ambilight Ambilight is a feature invented by Philips Electronics, generating light effects around the TV that matches the video contents. ...
A broadcast flag is a set of status bits (or flags) sent in the data stream of a digital television program that indicates whether or not it can be recorded, or if there are any restrictions on recorded content. ...
CableCARD is a plug-in card approximately the size of a credit card that allows consumers in the United States to view and record digital cable television channels on digital video recorders, personal computers and televisions without the use of other equipment such as a set top box (STB) provided...
This article is about Digital Light Processing. ...
Digital rights management (DRM) is an umbrella term that refers to access control technologies used by publishers and copyright holders to limit usage of digital media or devices. ...
Digital television (DTV) is a telecommunication system for broadcasting and receiving moving pictures and sound by means of digital signals, in contrast to analog signals used by analog (traditional) TV. DTV uses digital modulation data, which is digitally compressed and requires decoding by a specially designed television set, or a...
Foxtel IQ, a digital video recorder and a satellite cable set-top box. ...
Direct broadcast satellite (DBS) is a term used to refer to satellite television broadcasts intended for home reception, also referred to as direct-to-home signals. ...
DVD (also known as Digital Versatile Disc or Digital Video Disc) is a popular optical disc storage media format. ...
HD-DVD disc HD DVD (for High Density Digital Versatile Disc) is a digital optical media format which is being developed as one standard for high-definition DVD. HD DVD is similar to the competing Blu-ray Disc, which also uses the same CD sized (120 mm diameter) optical data...
A Blu-ray Disc (also called BDray) is a high-density optical disc format for the storage of digital information, including high-definition video. ...
Flicker-free is a term given to televisions that operate at 100 Hertz (or 100Hz) to eliminate flicker, compared to standard CRT televisions that operate at 50 or 60 Hertz, depending on country. ...
High-definition television (HDTV) means broadcast of television signals with a higher resolution than traditional formats (NTSC, SECAM, PAL) allow. ...
The High-Definition Multimedia Interface (HDMI) is a licensable audio/video connector interface for transmitting uncompressed, encrypted digital streams. ...
This article is about internet protocol television. ...
Internet television (or Internet TV) is television distributed via the Internet. ...
Laser TV is a new technology using optoelectronics. ...
Liquid crystal display television (LCD TV) is television that uses LCD technology for its visual output. ...
An example of a plasma display A plasma display panel (PDP) is a type of flat panel display now commonly used for large TV displays (typically above 37-inch or 940 mm). ...
Flat panel displays encompass a growing number of technologies enabling video displays that are lighter and much thinner than traditional television and video displays using cathode ray tubes, usually less than 10 cm (4 inches) thick. ...
A surface-conduction electron-emitter display (SED) is a flat panel display technology that uses surface conduction electron emitters for every individual display pixel. ...
A 3. ...
The term P2PTV refers to peer-to-peer software applications designed to redistribute video streams or files on a p2p network, typically TV stations across the world. ...
Pay-per-view is the name given to a system by which television viewers can call and order events to be seen on TV and pay for the private telecast of that event to their homes later. ...
A digital video recorder (DVR) is a device that records video to a digital storage medium in digital form. ...
Picture in Picture (PIP) allows you to watch more than one TV program(channel) at the same time on television sets or other devices. ...
Pixelplus, also called Pixel Plus, is a proprietary digital filter image processing technology developed by Philips which they claim enhances the display of analogue broadcast signals on their TVs. ...
Placeshifting can be defined as watching or listening to live, recorded or stored media on a remote device via the internet or over a data network. ...
For other uses, see Remote control (disambiguation). ...
The Slingbox is a TV streaming device that enables consumers to remotely view their cable, satellite, or personal video recorder (PVR) programming from an Internet-enabled computer with a broadband Internet connection. ...
Time shifting is the recording of television shows to some storage medium to be viewed at a time convenient to the consumer. ...
Video on demand systems are systems which allow users to select and watch video content over a network as part of an interactive television system. ...
Super Hi-Vision, also known as Ultra High Definition Video or UHDV is a digital video format, currently proposed by NHK of Japan. ...
This article or section does not adequately cite its references or sources. ...
Roll up TV is a developing technology, in which a television screen or computer display is modified to display on a paper thin surface that can be rolled up and stored. ...
Image File history File links Metadata Size of this preview: 450 × 600 pixelsFull resolution (2448 × 3264 pixel, file size: 679 KB, MIME type: image/jpeg) I, the copyright holder of this work, hereby release it into the public domain. ...
Image File history File links Metadata Size of this preview: 450 × 600 pixelsFull resolution (2448 × 3264 pixel, file size: 679 KB, MIME type: image/jpeg) I, the copyright holder of this work, hereby release it into the public domain. ...
[edit] Exterior designs In the early days of television, cabinets were made of wood grain, however, they were phased out in the 1980s. There has been a modern comeback of woodgrain.[2][3]
[edit] Geographical usage -
This film, television, or video-related list is incomplete; you can help by expanding it. ...
Geographical usage of television is a description of where and how television is to be found. ...
[edit] Content
[edit] Programming - See also: Category:Television genres
Getting TV programming shown to the public can happen in many different ways. After production the next step is to market and deliver the product to whatever markets are open to using it. This typically happens on two levels: - Original Run or First Run – a producer creates a program of one or multiple episodes and shows it on a station or network which has either paid for the production itself or to which a license has been granted by the producers to do the same.
- Syndication – this is the terminology rather broadly used to describe secondary programming usages (beyond original run). It includes secondary runs in the country of first issue, but also international usage which may or may not be managed by the originating producer. In many cases other companies, TV stations or individuals are engaged to do the syndication work, in other words to sell the product into the markets they are allowed to sell into by contract from the copyright holders, in most cases the producers.
In most countries, the first wave occurs primarily on free-to-air (FTA) television, while the second wave happens on subscription TV and in other countries. In the U.S., however, the first wave occurs on the FTA networks and subscription services, and the second wave travels via all means of distribution. In the television industry (as in radio), syndication is the sale of the right to broadcast programs to multiple stations, without going through a broadcast network. ...
A television station is a type of radio station that broadcasts both audio and video to television receivers in a particular area. ...
Free-to-air is a phrase used to describe television and radio broadcasts which are available without subscription and without decryption (pay-TV). ...
First run programming is increasing on subscription services outside the U.S., but few domestically produced programs are syndicated on domestic FTA elsewhere. This practice is increasing however, generally on digital-only FTA channels, or with subscriber-only first run material appearing on FTA.
Unlike the U.S., repeat FTA screenings of a FTA network program almost only occur on that network. Also, Affiliates rarely buy or produce non-network programming that is not centred around local events. An affiliate is a commercial entity with a relationship with a peer or a larger entity. ...
[edit] Advertising Since inception in the U.S. in 1940, TV commercials have become one of the most effective, most persuasive, and most popular methods of selling products of many sorts, especially consumer goods. U.S. advertising rates are determined primarily by Nielsen Ratings. The time of the day and popularity of the channel determine how much a television commercial can cost. For example, the highly popular American Idol can cost approximately $750,000 for a thirty second block of commercial time; while the same amount of time for the World Cup and the |
