Doctor Who in the 1980s

January 5, 1980 17.108.01: The Horns of Nimon - Part Three

January 12, 1980 17.108.01: The Horns of Nimon - Part FourJune 25, 1980: A lack of studio space forces John Nathan-Turner to abandon his plans to complete "Shada" as a Christmas special

August 30, 1980 18.109.01: The Leisure Hive - Part One. A new title sequence and costume for the Doctor make their first appearance.

September, 1980: The Doctor Who magazine goes monthly

September 6, 1980 18.109.01: The Leisure Hive - Part Two

September 13, 1980 18.109.02: The Leisure Hive - Part Three

September 20, 1980 18.109.03: The Leisure Hive - Part Four

September 27, 1980 18.110.01: Meglos - Part One

October 4, 1980 18.110.01: Meglos - Part Two

October 11, 1980 18.110.02: Meglos - Part Three

October 18, 1980 18.110.01: Meglos - Part Four

October 25, 1980 18.111.01: Full Circle - Part One

November 1, 1980 18.111.02: Full Circle - Part Two

November 8, 1980 18.111.01: Full Circle - Part Three

November 15, 1980 18.111.02: Full Circle - Part Four

November 22, 1980 18.112.01: State of Decay - Part One

November 29, 1980 18.112.02: State of Decay - Part Two

December 6, 1980 18.112.01: State of Decay - Part Three

December 13, 1980 18.112.02: State of Decay - Part Four

January 3, 1981 18.113.01: Warriors' Gate - Part One

January 10, 1981 18.113.02: Warriors' Gate - Part Two

January 17, 1981 18.113.01: Warriors' Gate - Part Three

January 24, 1981 18.113.02: Warriors' Gate - Part Four

January 31, 1981 18.114.01: The Keeper of Traken - Part One

February 7, 1981 18.114.01: The Keeper of Traken - Part Two

February 14, 1981 18.114.02: The Keeper of Traken - Part Three

February 21, 1981 18.114.03: The Keeper of Traken - Part Four

February 28, 1981 18.115.01: Logopolis - Part One

March 7, 1981 18.115.01: Logopolis - Part Two

March 14, 1981 18.115.02: Logopolis - Part Three

March 21, 1981 18.115.03: Logopolis - Part Four (Tom Baker makes his last regular appearance as the Doctor, regenerating into Peter Davison)

###  Fifth Doctor

January 4, 1982 19.116.01: Castrovalva - Part One (First full appearance of Peter Davison as the Doctor)

January 5, 1982 19.116.02: Castrovalva - Part Two

January 11, 1982 19.116.03: Castrovalva - Part Three

January 12, 1982 19.116.04: Castrovalva - Part Four

January 18, 1982 19.117.01: Four To Doomsday - Part One

January 19, 1982 19.117.02: Four To Doomsday - Part Two

January 25, 1982 19.117.03: Four To Doomsday - Part Three

January 26, 1982 19.117.04: Four To Doomsday - Part Four

February 1, 1982 19.118.01: Kinda - Part One

February 2, 1982 19.118.01: Kinda - Part Two

February 8, 1982 19.118.02: Kinda - Part Three

February 9, 1982 19.118.03: Kinda - Part Four

February 15, 1982 19.119.01: The Visitation - Part One

February 16, 1982 19.119.02: The Visitation - Part Two

February 22, 1982 19.119.03: The Visitation - Part Three

February 23, 1982 19.119.04: The Visitation - Part Four

March 1, 1982 19.120.01: Black Orchid - Part One

March 2, 1982 19.120.01: Black Orchid - Part Two

March 8, 1982 19.121.01: Earthshock - Part One

March 9, 1982 19.121.02: Earthshock - Part Two

March 15, 1982 19.121.03: Earthshock - Part Three

March 16, 1982 19.121.04: Earthshock - Part Four

March 22, 1982 19.122.01: Time-Flight - Part One

March 23, 1982 19.122.02: Time-Flight - Part Two

March 29, 1982 19.122.03: Time-Flight - Part Three

March 30, 1982 19.122.04: Time-Flight - Part Four

September 16, 1982: Novelisation of "Full Circle" published

January 3, 1983 20.123.01: Arc of Infinity - Part One

January 5, 1983 20.123.02: Arc of Infinity - Part Two

January 11, 1983 20.123.03: Arc of Infinity - Part Three

January 12, 1983 20.123.04: Arc of Infinity - Part Four

January 18, 1983 20.124.01: Snakedance - Part One

January 19, 1983 20.124.02: Snakedance - Part Two

January 25, 1983 20.124.03: Snakedance - Part Three

January 26, 1983 20.124.04: Snakedance - Part Four

February 1, 1983 20.125.01: Mawdryn Undead - Part One

February 2, 1983 20.125.01: Mawdryn Undead - Part Two

February 8, 1983 20.125.02: Mawdryn Undead - Part Three

February 9, 1983 20.125.03: Mawdryn Undead - Part Four

February 15, 1983 20.126.01: Terminus - Part One

February 16, 1983 20.126.02: Terminus - Part Two

February 22, 1983 20.126.03: Terminus - Part Three

February 23, 1983 20.126.04: Terminus - Part Four

March 1, 1983 20.127.01: Enlightenment - Part One

March 2, 1983 20.127.01: Enlightenment - Part Two

March 8, 1983 20.127.02: Enlightenment - Part Three

March 9, 1983 20.127.03: Enlightenment - Part Four

March 15, 1983 20.128.01: The King's Demons - Part One

March 16, 1983 20.128.02: The King's Demons - Part Two

November 23, 1983: Debut broadcast of "The Five Doctors"; this occurs on Public Broadcasting Service station WTTW in Chicago, Illinois, marking the first instance of a Doctor Who episode premiering outside of the United Kingdom

November 25, 1983 20.129.01: The Five Doctors - 30th Anniversary special is first broadcast in the UK

January 5, 1984 21.130.01: Warriors of the Deep - Part One

January 6, 1984 21.130.02: Warriors of the Deep - Part Two

January 12, 1984 21.130.03: Warriors of the Deep - Part Three

January 13, 1984 21.130.01: Warriors of the Deep - Part Four

January 19, 1984 21.131.01: The Awakening - Part One

January 20, 1984 21.131.02: The Awakening - Part Two

January 26, 1984 21.132.01: Frontios - Part One

January 27, 1984 21.132.02: Frontios - Part Two

February 2, 1984 21.132.01: Frontios - Part Three

February 3, 1984 21.132.02: Frontios - Part Four

February 8, 1984 21.133.01: Resurrection of the Daleks - Part One

February 15, 1984 21.133.02: Resurrection of the Daleks - Part Two

February 23, 1984 21.134.01: Planet of Fire - Part One

February 24, 1984 21.134.02: Planet of Fire - Part Two

March 1, 1984 21.134.03: Planet of Fire - Part Three

March 2, 1984 21.134.01: Planet of Fire - Part Four

March 8, 1984 21.135.01: The Caves of Androzani - Part One

March 9, 1984 21.135.02: The Caves of Androzani - Part Two

March 15, 1984 21.135.03: The Caves of Androzani - Part Three

March 16, 1984 21.135.01: The Caves of Androzani - Part Four (Peter Davison leaves Doctor Who, and regenerates into Colin Baker

March 22, 1984 21.136.01: The Twin Dilemma - Part One (Unusually, the first full appearance of a new Doctor occurs mid-season)

March 23, 1984 21.136.02: The Twin Dilemma - Part Two

March 29, 1984 21.136.03: The Twin Dilemma - Part Three

March 30, 1984 21.136.04: The Twin Dilemma - Part Four

January 5, 1985 22.137.01: Attack of the Cybermen - Part One

January 12, 1985 22.137.02: Attack of the Cybermen - Part Two

January 19, 1985 22.138.01: Vengeance On Varos - Part One

January 26, 1985 22.138.02: Vengeance On Varos - Part Two

February 2, 1985 22.139.01: The Mark of the Rani - Part One

February 9, 1985 22.139.02: The Mark of the Rani - Part Two

February 16, 1985 22.140.01: The Two Doctors - Part One (Patrick Troughton joins Colin Baker)

February 21, 1985: John Nathan-Turner and Eric Saward are alerted to rumours that Doctor Who has been cancelled

February 23, 1985 22.140.02: The Two Doctors - Part Two

February 25, 1985: BBC Head of Series and Serials Jonathan Powell informs John Nathan-Turner that the start of production on Season Twenty-Three has been deferred from Spring 1985 to Spring 1986

February 27, 1985: The British press leaks the news that Doctor Who has been put on hiatus by the BBC

March 1, 1985: The BBC announces that Doctor Who will return to television in September 1986 instead of the preceding January, and will revert to twenty-five-minute episodes

March 2, 1985 22.140.01: The Two Doctors - Part Three

March 9, 1985 22.141.01: Timelash - Part One

March 16, 1985 22.141.01: Timelash - Part Two

March 23, 1985 22.142.01: Revelation of the Daleks - Part One

March 30, 1985 22.142.02: Revelation of the Daleks - Part Two

April 6, 1985: Rumours begin to circulate that Season Twenty-Three will consist of fewer than the anticipated twenty-six episodes

May 24, 1986: Robert Holmes passes away, leaving Eric Saward to complete the final episode of "The Trial Of A Time Lord" (Segment Four)

December 18, 1985: After months of rumours, the BBC publicly confirms that Season Twenty-Three will run to only fourteen episodes

August 25, 1986: Colin Baker appears on Wogan.

September 6, 1986 23.143.01: The Trial of a Time Lord: The Mysterious Planet - Part One

September 13, 1986 23.143.01: The Trial of a Time Lord: The Mysterious Planet - Part Two

September 20, 1986 23.143.02: The Trial of a Time Lord: The Mysterious Planet - Part Three

September 20, 1986: Colin Baker appears on 'Roland Rat - The Series'

September 27, 1986 23.143.03: The Trial of a Time Lord: The Mysterious Planet - Part Four

October 4, 1986 23.144.01: The Trial of a Time Lord: Mindwarp - Part Five

October 11, 1986 23.144.02: The Trial of a Time Lord: Mindwarp - Part Six

October 18, 1986 23.144.01: The Trial of a Time Lord: Mindwarp - Part Seven

October 25, 1986 23.144.02: The Trial of a Time Lord: Mindwarp - Part Eight

October 29, 1986: Colin Baker learns that the option on his contract for Season Twenty-Four will not be taken up, meaning that he has been fired from Doctor Who

November 1, 1986 23.145.01: The Trial of a Time Lord: Terror of the Vervoids - Part Nine

November 8, 1986 23.145.01: The Trial of a Time Lord: Terror of the Vervoids - Part Ten

November 15, 1986 23.145.02: The Trial of a Time Lord: Terror of the Vervoids - Part Eleven

November 22, 1986 23.145.01: The Trial of a Time Lord: Terror of the Vervoids - Part Twelve

November 29, 1986 23.146.01: The Trial of a Time Lord: The Ultimate Foe - Part Thirteen

December 6, 1986 23.146.01: The Trial of a Time Lord: The Ultimate Foe - Part Fourteen

December 13, 1986: The press reports that Colin Baker has been fired from Doctor Who

December 18, 1986: The BBC confirms that Colin Baker will not be returning to Doctor Who for Season Twenty-Four

December 6, 1986: Colin Baker makes his final regular appearance in "The Trial of a Time Lord: The Ultimate Foe"

###  Seventh Doctor

September 7, 1987 24.147.01: Time And the Rani - Part One (Sylvester McCoy makes a sudden appearance as the new Doctor, first pretending to be Colin Baker and then regenerating into himself. Due to the circumstances of Baker's exit, he was not available to film the regeneration scene.)

September 14, 1987 24.147.02: Time And the Rani - Part Two

September 19, 1987: Novelisation of "The Romans" is published

September 21, 1987 24.147.01: Time And the Rani - Part Three

September 28, 1987 24.147.02: Time And the Rani - Part Four

October 5, 1987 24.148.01: Paradise Towers - Part One

October 12, 1987 24.148.02: Paradise Towers - Part Two

October 19, 1987 24.148.03: Paradise Towers - Part Three

October 26, 1987 24.148.04: Paradise Towers - Part Four

November 2, 1987 24.149.01: Delta And the Bannermen - Part One

November 9, 1987 24.149.02: Delta And the Bannermen - Part Two

November 16, 1987 24.149.03: Delta And the Bannermen - Part Three

November 23, 1987 24.150.01: Dragonfire - Part One

November 30, 1987 24.150.02: Dragonfire - Part Two

December 7, 1987 24.150.01: Dragonfire - Part Three

October 5, 1988 25.151.01: Remembrance of the Daleks - Part One

October 12, 1988 25.151.02: Remembrance of the Daleks - Part Two

October 19, 1988 25.151.03: Remembrance of the Daleks - Part Three

October 26, 1988 25.151.01: Remembrance of the Daleks - Part Four

November 2, 1988 25.152.01: The Happiness Patrol - Part One

November 9, 1988 25.152.02: The Happiness Patrol - Part Two

November 16, 1988 25.152.03: The Happiness Patrol - Part Three

November 23, 1988 25.153.01: Silver Nemesis - Part One

November 30, 1988 25.153.02: Silver Nemesis - Part Two

December 7, 1988 25.153.01: Silver Nemesis - Part Three

December 14, 1988 25.154.01: The Greatest Show In the Galaxy - Part One

December 21, 1988 25.154.02: The Greatest Show In the Galaxy - Part Two

December 28, 1988 25.154.03: The Greatest Show In the Galaxy - Part Three

January 4, 1989 25.154.01: The Greatest Show In the Galaxy - Part Four

March 23, 1989 -.-.01: Doctor Who – The Ultimate Adventure - Stage play

September 6, 1989 26.156.01: Ghost Light - Part One

September 13, 1989 26.156.02: Ghost Light - Part Two

September 20, 1989 26.156.03: Ghost Light - Part Three

September 27, 1989 26.156.01: Ghost Light - Part Four

October 4, 1989 26.157.01: The Curse of Fenric - Part One

October 11, 1989 26.157.02: The Curse of Fenric - Part Two

October 18, 1989 26.157.03: The Curse of Fenric - Part Three

October 18, 1989: Columbia Pictures tenders a formal offer to co-produce Doctor Who with the BBC

October 25, 1989 26.155.01: Battlefield - Part One

October 27, 1989: The BBC defers a decision on the co-production deal with Columbia Pictures until at least 1990

November 1, 1989 26.155.02: Battlefield - Part Two

November 8, 1989 26.155.01: Battlefield - Part Three

November 15, 1989 26.155.02: Battlefield - Part Four

November 22, 1989 26.158.01: Survival - Part One

November 29, 1989 26.158.02: Survival - Part Two

December 6, 1989 26.158.01: Survival - Part Three (Sylvester McCoy makes his final regular appearance)