Logopolis is a serial in the British science fiction television series Doctor Who, which was first broadcast in four weekly parts from February 28 to March 21, 1981. It was Tom Baker's last story as the Doctor and marks the first appearance of Peter Davison in the role. Nyssa, played by Sarah Sutton, joins the Doctor as a companion. This serial is also the first appearance of Janet Fielding as new companion Tegan Jovanka. For other persons named Tom Baker, see Tom Baker (disambiguation). ... The Fourth Doctor is the name given to the fourth incarnation of the Doctor seen on screen in the long-running BBC television science-fiction series Doctor Who. ... Peter Davison (born 13 April 1951) is an English actor, best known for his roles as Tristan Farnon in the television version of James Herriots All Creatures Great and Small and as the fifth incarnation of the Doctor in Doctor Who, which he played from 1981 to 1984. ... The Fifth Doctor is the name given to the fifth incarnation of the Doctor seen on screen in the long-running BBC television science-fiction series Doctor Who. ... Christopher Hamilton Bidmead (born 1941) is a freelance writer. ... Peter Grimwade (died May 15th 1990) was a British television writer and director, best known for his work on the BBC science fiction television series Doctor Who. ... John Nathan-Turner. ... Barry Letts Barry Letts is a British actor, television director and producer best known for his work on the BBC science fiction television series Doctor Who. ... This is a list of Doctor Who television serials. ... February 28 is the 59th day of the year in the Gregorian calendar. ... March 21 is the 80th day of the year in the Gregorian Calendar (81st in leap years). ... 1981 (MCMLXXXI) was a common year starting on Thursday of the Gregorian calendar. ... The Keeper of Traken is a serial in the British science fiction television series Doctor Who, which was first broadcast in four weekly parts from January 31 to February 21, 1981. ... Castrovalva is a serial in the British science fiction television series Doctor Who, which was first broadcast in four twice-weekly parts from January 4 to January 12, 1982 It was the first full serial to feature Peter Davison in the starring role. ... This is a list of Doctor Who television serials. ... A broadcast of the long-running and popular British science-fiction series Doctor Who. ... Doctor Who is a long-running British science fiction television programme (and 1996 television movie) produced by the BBC about the adventures of a mysterious time-traveller known as The Doctor, who explores time and space with his companions, solving problems and righting wrongs. ... February 28 is the 59th day of the year in the Gregorian calendar. ... March 21 is the 80th day of the year in the Gregorian Calendar (81st in leap years). ... 1981 (MCMLXXXI) was a common year starting on Thursday of the Gregorian calendar. ... For other persons named Tom Baker, see Tom Baker (disambiguation). ... Peter Davison (born 13 April 1951) is an English actor, best known for his roles as Tristan Farnon in the television version of James Herriots All Creatures Great and Small and as the fifth incarnation of the Doctor in Doctor Who, which he played from 1981 to 1984. ... Sarah Sutton as Nyssa (from Snakedance). ... Sarah Sutton (publicity portrait). ... Janet Fielding (publicity portrait). ... Tegan Jovanka is a fictional character played by Janet Fielding in the long-running British science fiction television series Doctor Who. ...

Synopsis

The Fourth Doctor goes to Logopolis to repair the TARDIS's chameleon circuit, but his old enemy the Master has plans of his own for the planet of mathematicians, a plan that could spell doom for the universe. The Fourth Doctor is the name given to the fourth incarnation of the Doctor seen on screen in the long-running BBC television science-fiction series Doctor Who. ... The Third Doctor emerging from the TARDIS in the 1970 serial Spearhead from Space. ... The Master is a supporting fictional character in the British science fiction television series Doctor Who. ...

Plot

"Nothing like this has ever happened to me before...!"

The Fourth Doctor is pacing around in the TARDIS Cloister Room, pondering thoughts of decay and entropy. As he and Adric prepare to leave, the large bell in the centre of the room begins to ring. This worries the Doctor, as the sound of the Cloister Bell is a sign of impending universal catastrophe. The Fourth Doctor speaks with his companions while the mysterious Watcher heralds the coming end of his era (from Doctor Who - Logopolis). ... The Fourth Doctor speaks with his companions while the mysterious Watcher heralds the coming end of his era (from Doctor Who - Logopolis). ... The Fourth Doctor is the name given to the fourth incarnation of the Doctor seen on screen in the long-running BBC television science-fiction series Doctor Who. ... The Third Doctor emerging from the TARDIS in the 1970 serial Spearhead from Space. ... Adric is a fictional character played by Matthew Waterhouse in the long-running British science fiction television series Doctor Who. ... This is a list of items from the BBC television series Doctor Who. ...

To keep his mind off this, he decides to repair the TARDIS's chameleon circuit, which has frozen it into the shape of a police box. In order to do this, he intends to materialise the TARDIS around a real police box (thus disguising it), and then obtain its precise measurements in 27 dimensions. With these measurements, he will have the inhabitants of the planet Logopolis produce a mathematical calculation — a block transfer computation — to reset the circuit. However, the "police box" he materialises around is actually the TARDIS of the Master, who has survived their encounter on the planet Traken. When the Doctor materialises around the Master's TARDIS, a recursive loop of TARDISes within TARDISes is formed. A police box is a telephone kiosk or callbox for use by members of the police. ... The Keeper of Traken is a serial in the British science fiction television series Doctor Who, which was first broadcast in four weekly parts from January 31 to February 21, 1981. ...

Meanwhile, an airline stewardess, Tegan Jovanka, is being driven to the airport by her Aunt Vanessa. After their car breaks down, Tegan decides to go to the "police box" for help, but finds herself lost in the TARDIS instead. The Doctor and Adric enter another police box in a duplicate TARDIS, but the Doctor, telling Adric to wait behind finds himself this time outside the box. He meets a number of policemen, who find the shrunken, dead bodies of Tegan's aunt and another policeman. Tegan Jovanka is a fictional character played by Janet Fielding in the long-running British science fiction television series Doctor Who. ... For the band, see The Police. ...

The police think the Doctor has something to do with it, but Adric creates a distraction, and allows the Doctor to escape. In the distance, a mysterious white-clad stranger watches the proceedings. Realising that the shrunken bodies are the trademark of the Master, the Doctor decides to materialise the TARDIS underwater, to literally flush him out. The Doctor misses the River Thames, however, and lands on a boat instead. The mysterious stranger appears here too, and beckons to the Doctor, telling him to go to Logopolis. The Master is a supporting fictional character in the British science fiction television series Doctor Who. ... The Thames (pronounced //) is a river flowing through southern England, in its lower reaches flowing through London into the sea. ...

As the TARDIS arrives at Logopolis, Tegan finds her way to the control room, somewhat annoyed. She asks to know where her aunt is, and the Doctor, realising that she was the dead woman in the car, skirts the question. Once they exit the TARDIS, the Doctor asks the Logopolitan leader, the Monitor, for his help. The Logopolitans are able to model reality by pure mathematics — whatever they calculate can take physical form. However, block transfer computations cannot be calculated by machines, so to perform them, the Logopolitans do not use computers. Instead, they use a large physical array of Logopolitans, each muttering a line of calculations out loud and passing them on to the next.

However, unknown to the group, the Master has arrived on Logopolis, and has killed several Logopolitans, which disrupts the calculations for the TARDIS. When the Logopolitans produce the required computation and the Doctor attempts to enter it into the TARDIS, it instead shrinks the TARDIS to half its normal size and causes strange effects inside the ship.

The Logopolitans try to stabilise the TARDIS using sonic projectors to project a stasis field while the Monitor and Adric attempt to uncover the fault. Meanwhile, Nyssa has been brought from Traken by the Watcher, the mysterious white figure the Doctor spoke with. She is searching for her father. The Monitor and Adric work through the city and discover the shrunken bodies of three Logopolitans. Correcting the error this has caused, they bring the new computation to the TARDIS. Tegan holds the notes up to the TARDIS so the Doctor is able to read them through the scanner and correct the fault. The Doctor emerges from the now restored TARDIS, and admits to Tegan that her aunt is dead. Meanwhile, Nyssa finds the Master, whom she believes to be her father as he is inhabiting Tremas's body. The Master gives her a bracelet, which is actually a device which will allow him to control her actions. Sarah Sutton as Nyssa (from Snakedance). ...

The Master attaches a device to the sonic projectors and sets up a counterwave that brings silence to the Central Registry, preventing the Registers from making their calculations. He then goes to the Registry's control room (a replica of the Pharos Project on Earth, a radio telescope tasked to seek out signs of extraterrestrial life), and demands that the Monitor tell him what the true purpose of Logopolis is. The Doctor arrives with Adric and Nyssa, and Adric deactivates the Master's device, only for the Master to have Nyssa attempt to throttle him. Tegan restores the device, and the Master repeats his demand. The Monitor warns the Master that bringing Logopolis to a halt will cause universal disaster, but the Master replies that it is only a temporary effect, which he attempts to demonstrate by deactivating the suppression device. The 64 meter radio telescope at Parkes Observatory A radio telescope is a form of radio receiver used in astronomy. ... This article is about the search for extra-terrestrial intelligence. ...

However, the silence persists and the calculations do not resume. They go outside, and find all the Logopolitans dead, crumbling to dust, and the city itself collapsing. The Master thinks this is some sort of trick and tries to have Nyssa strangle the Monitor, but the control device ceases to function. He tries to increase the device's power, but this causes it to fall apart as local decay increases. The Monitor explains the situation: the universe had long ago passed the point of heat death. To stave off final collapse, the Logopolitans had been modelling a number of temporary Charged Vacuum Emboitments, like the one through which the TARDIS had been previously transported into E-Space. The excess entropy generated by the universe had been passing through the CVEs to other universes. However, The Master's interference has caused the CVEs to close and the universe is now dying at last. The heat death is a possible final state of the universe, in which it has run down to a state of no free energy to sustain motion or life. ... Full Circle is a serial in the British science fiction television series Doctor Who, which was first broadcast in four weekly parts from October 25 to November 15, 1980. ... Ice melting - classic example of entropy increasing[1] described in 1862 by Rudolf Clausius as an increase in the disgregation of the molecules of the body of ice. ...

Realising that he and the Master must work together, the Doctor orders his companions into his TARDIS, and has the Watcher take them out of spacetime. However, Tegan refuses to co-operate and follows the Doctor, Master and Monitor back to the Logopolis control room. The Monitor reveals that they had been completing a program to make the CVEs permanent, and prepares to use it on one of the surviving CVEs, but entropy takes hold of him and he disintegrates before their eyes. The Doctor dismantles the computer and realises the program is stored in bubble memory that they can use with the real Pharos Project. The Doctor, Master and Tegan escape from Logopolis in the Master's TARDIS. In physics, spacetime is a mathematical model that combines three-dimensional space and one-dimensional time into a single construct called the space-time continuum, in which time plays the role of the 4th dimension. ... Intel bubble memory module Bubble memory is a type of computer memory that uses a thin film of a magnetic material to hold small magnetized areas, known as bubbles, which each store one bit of data. ...

Adric and Nyssa watch helplessly in the Doctor's TARDIS as a portion of the universe is wiped out by encroaching entropy — including Traken. On Earth, the two Time Lords reconfigure the Logopolitan program and feed it into the Project's computers, but the Master points out that the transmitter is pointed away from the last surviving CVE. After speaking with the Watcher, Adric brings the Doctor's TARDIS to Earth as the Doctor and the Master run on foot to realign the dish. The Doctor's companions distract the guards and the two Time Lords get to the dish's control room, hooking up a light speed overdrive from the Master's TARDIS to ensure the signal gets to the CVE in time. Upon transmission of the program, the CVE begins stabilising. This article is about the Time Lords from Doctor Who. ... Cherenkov effect in a swimming pool nuclear reactor. ...

The Master's co-operation with the Doctor has been a ploy, however. Holding the Doctor at gunpoint with his Tissue Compression Eliminator, he transmits a message to the people of the universe, saying that if they do not acknowledge his rule, he will send a signal to close the CVE and restart the collapse. The Doctor climbs onto the radio telescope's gantry to disconnect the power cable, and the Master attempts to prevent him by tilting the dish 90 degrees. The Doctor succeeds in disconnecting the cable, but falls off the gantry. As he hangs on to the disconnected cable, visions of old enemies mock him. Losing his grip, the Doctor plunges to the ground. The Master enters his own TARDIS and it dematerialises.

The Doctor's companions run to the spot where he has fallen. Dying, the Doctor experiences visions of the companions that have accompanied his current form and observes, "It's the end... but the moment has been prepared for." They turn to see the Watcher approach, and as he does so he merges with the Doctor. Nyssa realises that the Watcher was the future Doctor all the time. As the companions look on, the Fourth Doctor regenerates into a new, younger body — the Fifth Doctor. The Doctor is the central fictional character in the long-running BBC television science-fiction series Doctor Who, and also features in a vast range of spin-off novels, audio dramas and comic strips connected to the series. ... The Fifth Doctor is the name given to the fifth incarnation of the Doctor seen on screen in the long-running BBC television science-fiction series Doctor Who. ...

Cast

• Doctor Who — Tom Baker
• Doctor Who — Peter Davison
• Adric — Matthew Waterhouse
• Tegan Jovanka — Janet Fielding
• Nyssa — Sarah Sutton
• The Master — Anthony Ainley
• Aunt Vanessa — Dolore Whiteman
• The Monitor — John Fraser
• Detective Inspector — Tom Georgeson
• Security Guard — Christopher Hurst

The Doctor is the central fictional character in the long-running BBC television science-fiction series Doctor Who, and also features in a vast range of spin-off novels, audio dramas and comic strips connected to the series. ... For other persons named Tom Baker, see Tom Baker (disambiguation). ... Peter Davison (born 13 April 1951) is an English actor, best known for his roles as Tristan Farnon in the television version of James Herriots All Creatures Great and Small and as the fifth incarnation of the Doctor in Doctor Who, which he played from 1981 to 1984. ... Adric is a fictional character played by Matthew Waterhouse in the long-running British science fiction television series Doctor Who. ... Matthew Waterhouse (born 19 December 1961 in Hertford) is a British actor best known for his role as Adric in the BBC science fiction television series Doctor Who. ... Tegan Jovanka is a fictional character played by Janet Fielding in the long-running British science fiction television series Doctor Who. ... Janet Fielding (publicity portrait). ... Sarah Sutton as Nyssa (from Snakedance). ... Sarah Sutton (publicity portrait). ... The Master is a supporting fictional character in the British science fiction television series Doctor Who. ... Anthony Ainley Anthony Ainley (20 August 1932 - 3 May 2004) was an English actor best known for his work on television and particularly for his role as the Master in Doctor Who. ... John Fraser (18 March 1931- ) is a Scottish-born actor of Cinema, Television and Theatre. ... Tom Georgeson in a British actor, known for his television and film work. ...

Cast notes

• This story was the last story to feature Tom Baker as "the current" Doctor. Although the Fourth Doctor appeared in the 20th Anniversary special The Five Doctors, this was only in the form of footage from the uncompleted Shada. Baker would reprise his role as the Doctor only in the Children in Need special Dimensions in Time (1993). He currently holds the record for having the longest tenure (seven years) as the Doctor on-screen.
• Episode 4 of this story was the last time the lead character was listed in the credits as "Doctor Who" for the next 24 years. Beginning with the next story, Castrovalva, until the series' cancellation in 1989, the character was credited simply as "The Doctor". The 1996 television film did not have an on-screen credit for the Eighth Doctor, but listed the Seventh as the "Old Doctor". The 2005 relaunch returned the credit to "Doctor Who", and then again to "The Doctor" in The Christmas Invasion.
• Also, Episode 4 was the first to credit two actors as "Doctor Who" or "The Doctor" when a regeneration scene was involved. It also happened at the end of Episode 4 of The Caves of Androzani. In both instances, Peter Davison was billed second.

The Five Doctors was a special movie-length episode of the British science fiction television series Doctor Who, produced in celebration of the programmes twentieth anniversary. ... Shada is an unaired serial of the British science fiction television series Doctor Who. ... Pudsey is the teddy bear logo of Children in Need, created by designer Joanna Ball and named after Balls home town, Pudsey, in West Yorkshire, England. ... Dimensions in Time was a charity special crossover between the British science fiction television series Doctor Who and the soap opera EastEnders that ran in two parts on November 26 and 27, 1993. ... Castrovalva is a serial in the British science fiction television series Doctor Who, which was first broadcast in four twice-weekly parts from January 4 to January 12, 1982 It was the first full serial to feature Peter Davison in the starring role. ... Doctor Who is a television movie based on the British science fiction television series Doctor Who. ... The Eighth Doctor is the name given to the eighth incarnation of the Doctor seen on screen in the long-running BBC television science-fiction series Doctor Who. ... The Seventh Doctor is the name given to the seventh incarnation of the Doctor seen on screen in the long-running BBC television science-fiction series Doctor Who. ... This is a list of Doctor Who television serials. ... The Christmas Invasion is a 60-minute special episode of the British science fiction television series Doctor Who. ... The Caves of Androzani is a serial in the British science fiction television series Doctor Who, which was first broadcast in four twice-weekly parts from March 8 to March 16, 1984. ...

In print

The Target novelisation by Christopher H. Bidmead

A novelisation of this serial, written by Christopher H. Bidmead, was published by Target Books in October 1982. Image File history File links Doctor_Who_Logopolis. ... Image File history File links Doctor_Who_Logopolis. ... by David Whitaker, published in 1964, was the very first Doctor Who novelisation. ... Christopher Hamilton Bidmead (born 1941) is a freelance writer. ... Christopher Hamilton Bidmead (born 1941) is a freelance writer. ... Target Books was a British publishing imprint, established in 1973 by Universal-Tandem Publishing Co Ltd, a paperback publishing company. ...

Continuity

• This story continues a loose arc of three serials featuring the Master. The trilogy began with The Keeper of Traken (1981) and concludes in Castrovalva (1982). Although the Master does not appear until Part Three, his laughter can be heard in the first two episodes and Anthony Ainley is credited accordingly.
• This serial — as pointed out in About Time 5 by Lawrence Miles and Tat Wood — has arguably the largest body count of any Doctor Who story, albeit not explicitly shown, as the destruction of Logopolis apparently causes a significant portion of the entire universe to be swallowed by a wave of entropy. At the very least, the Traken Union is destroyed, which would put the death toll in the billions and making the Master a mass murderer of unprecedented proportions, albeit one caused incidentally.
• The spin-off BBC Books novel The Quantum Archangel by Craig Hinton briefly shows an alternate timeline where the destruction of Logopolis did result in the death of the universe.
• Before the Doctor falls from the dish, the enemies that mock him are the decaying Master (The Deadly Assassin), a Dalek (Destiny of the Daleks), the Pirate Captain (The Pirate Planet), the Cyberleader (Revenge of the Cybermen), Davros (Genesis of the Daleks), a Sontaran (The Invasion of Time), a Zygon (Terror of the Zygons) and the Black Guardian (The Armageddon Factor).
• As he is lying on the ground after falling the Doctor sees visions of all the companions that previously accompanied his fourth incarnation: Sarah Jane Smith (Terror of the Zygons), Harry Sullivan (The Sontaran Experiment), Brigadier Lethbridge-Stewart (Invasion Of The Dinosaurs, a Third Doctor story), Leela (The Robots Of Death), K-9 (The Armageddon Factor), Romana I (The Stones of Blood) and Romana II (Full Circle).
• This story features the Doctor's TARDIS materialising around the Master's TARDIS and creating a recursive loop. A similar process occurred in The Time Monster, but did not happen when the TARDIS materialised inside Professor Chronotis's rooms (actually his TARDIS in disguise) in the untelevised Shada.

The Keeper of Traken is a serial in the British science fiction television series Doctor Who, which was first broadcast in four weekly parts from January 31 to February 21, 1981. ... Castrovalva is a serial in the British science fiction television series Doctor Who, which was first broadcast in four twice-weekly parts from January 4 to January 12, 1982 It was the first full serial to feature Peter Davison in the starring role. ... Lawrence Miles (born 1972 in Middlesex) is a science-fiction author best known for his work on original Doctor Who novels (both for the Virgin New Adventures and BBC Books series) and the subsequent spin-off Faction Paradox. ... Tat Wood is an academic and co-writer (with Lawrence Miles) of the About Time episode guides (begun 2004) to the television programme Doctor Who. ... This is a list of planets, fictional or otherwise, that are mentioned in the British science fiction television series Doctor Who. ... Doctor Who spin-offs refers to material created outside of, but related to, the long-running British science fiction television series Doctor Who. ... BBC Books is the book publishing division of BBC Worldwide, the commercial subsidiary of the British Broadcasting Corporation. ... The Quantum Archangel is a BBC Books original novel written by Craig Hinton and based on the long-running British science fiction television series Doctor Who. ... Craig Hinton (born 1964 in London) is an author most associated with his work for various spin-offs from the BBC Television series Doctor Who. ... Parallel universe or alternate reality in science fiction and fantasy is a self-contained separate reality coexisting with our own. ... The Deadly Assassin is a serial in the British science fiction television series Doctor Who, which was first broadcast in four weekly parts from October 30 to November 20, 1976. ... The Daleks (pronounced DAH-lecks; IPA: ) are a fictional extraterrestrial race of mutants from the British science fiction television series Doctor Who. ... Destiny of the Daleks is a serial in the British science fiction television series Doctor Who, which was first broadcast in four weekly parts from September 1 to September 22, 1979. ... The Pirate Planet is the second serial in the Key to Time arc of Doctor Who. ... The Cybermen are a fictional race of cyborgs who are amongst the most persistent enemies of the Doctor in the British science fiction television series, Doctor Who. ... Revenge of the Cybermen is a serial in the British science fiction television series Doctor Who, which was first broadcast in four weekly parts from April 19 to May 10, 1975. ... Davros is a character from the long-running British science fiction television series Doctor Who, responsible for the genesis of the Doctors deadliest enemies, the Daleks. ... Genesis of the Daleks is a serial in the British science fiction television series Doctor Who, which was originally broadcast in six weekly parts from March 8 to April 12, 1975. ... The Sontarans are a fictional extraterrestrial race from the British science fiction television series Doctor Who. ... The Invasion of Time is a serial in the British science fiction television series Doctor Who, which was first broadcast in six weekly parts from February 4 to March 11, 1978. ... The Zygons are a fictional extraterrestrial race in the long-running British science fiction television series Doctor Who. ... Terror of the Zygons is a serial in the British science fiction television series Doctor Who, which was first broadcast in four weekly parts from August 30 to September 20, 1975 // Synopsis The Fourth Doctor is summoned to Earth by a emergency signalling device he left with the Brigadier who... The Black Guardian is a character in the long-running British science fiction television series Doctor Who. ... The Armageddon Factor is a serial in the British science fiction television series Doctor Who, which was first broadcast in six weekly parts from January 20 to February 24, 1979. ... Sarah Jane Smith is a fictional character played by Elisabeth Sladen in the long-running British science fiction television series Doctor Who and related spin-offs. ... Terror of the Zygons is a serial in the British science fiction television series Doctor Who, which was first broadcast in four weekly parts from August 30 to September 20, 1975 // Synopsis The Fourth Doctor is summoned to Earth by a emergency signalling device he left with the Brigadier who... Harry Sullivan is a fictional character from the British science-fiction television series Doctor Who and was a companion of the Fourth Doctor. ... The Sontaran Experiment is a serial in the British science fiction television series Doctor Who, which was originally broadcast in two weekly parts on February 22 and March 1, 1975. ... Nicholas Courtney as Brigadier Lethbridge-Stewart. ... Invasion of the Dinosaurs is a serial in the British science fiction television series Doctor Who, which was first broadcast in six weekly parts from January 12 to February 16, 1974. ... The Third Doctor is the name given to the third incarnation of the Doctor seen on screen in the long-running BBC television science-fiction series Doctor Who. ... Leela is a fictional character played by Louise Jameson in the long-running British science fiction television series Doctor Who. ... The Robots of Death is a serial in the British science fiction television series Doctor Who, which was first broadcast in four weekly parts from January 29 to February 19, 1977. ... K-9, or K9, is the name of several robotic dogs in the long-running British science fiction television series, Doctor Who. ... The Armageddon Factor is a serial in the British science fiction television series Doctor Who, which was first broadcast in six weekly parts from January 20 to February 24, 1979. ... Romana, short for Romanadvoratrelundar, is a fictional character in the long-running British science fiction television series Doctor Who. ... The Stones of Blood is a serial in the British science fiction television series Doctor Who, which was first broadcast in four weekly parts from October 28 to November 18, 1978. ... Full Circle is a serial in the British science fiction television series Doctor Who, which was first broadcast in four weekly parts from October 25 to November 15, 1980. ... The Time Monster is a serial in the British science fiction television series Doctor Who, which was first broadcast in six weekly parts from May 20 to June 24, 1972. ... Professor Urban Chronotis is a fictional character created by Douglas Adams. ... Shada is an unaired serial of the British science fiction television series Doctor Who. ...

Production

• Tom Baker's face was electronically removed from the closing credits of Episode 4, and the titles were re-shot with Peter Davison's face for the following story, Castrovalva.
• The Lovell Telescope at Jodrell Bank was used for the filming of the location scenes at the Pharos Project.

The 76m Lovell Telescope at Jodrell Bank Observatory. ...

Outside references

• The key plot point of shunting excess entropy into another universe was previously used in Isaac Asimov's novel The Gods Themselves.

Dr. Isaac Asimov (c. ... The Gods Themselves is a 1972 science fiction novel written by Isaac Asimov (ISBN 1061500534). ...

DVD release

• According to Doctor Who Magazine #371, the serial will be released on DVD in January 2007 as part of a trilogy alongside The Keeper of Traken and Castrovalva. The set will be titled New Beginnings.

Doctor Who Magazine (abbreviated as DWM) is a magazine devoted to the long-running British science fiction television series Doctor Who. ...

External links

• Logopolis episode guide on the BBC website
• Logopolis at Doctor Who: A Brief History Of Time (Travel)
• Logopolis at the Doctor Who Reference Guide

Reviews

• Logopolis reviews at Outpost Gallifrey
• Logopolis reviews at The Doctor Who Ratings Guide

Outpost Gallifrey is a fan website for the long-running British science fiction television series Doctor Who. ...

Target novelisation

• Logopolis (novelisation) reviews at The Doctor Who Ratings Guide
• On Target — Logopolis