The Doctor Who Production Diary: 1980

January
5 Debut broadcast of The Horns Of Nimon episode three on BBC1 The Horns Of Nimon
12 Debut broadcast of The Horns Of Nimon episode four on BBC1 The Horns Of Nimon
16 Lalla Ward is contracted for the first twenty episodes of Season Eighteen; unhappy with John Nathan-Turner's more serious direction for Doctor Who, she has decided to leave the programme mid-year The Second Romana
17 Stephen Gallagher is commissioned to provide a storyline for Warriors' Gate Warriors' Gate
18 Tom Baker is contracted for Season Eighteen The Fourth Doctor
24 Terrance Dicks is commissioned to write a revised version of his 1977 script “The Vampire Mutations”, which will now become State Of Decay State Of Decay
30 A character outline is issued for new companion Adric Adric

February
11 John Leeson is contracted for the first eight episodes of Season Eighteen, beginning with Meglos; David Brierly has left the programme after John Nathan-Turner refused to give him an on-screen role, but Leeson has returned after being told that K·9 is to be written out of Doctor Who K·9
25 John Flanagan and Andrew McCulloch are commissioned to provide a storyline for Meglos Meglos
25 Andrew Smith is commissioned to write the first episode of Full Circle Full Circle
27 Christopher Priest is commissioned to provide a storyline for “Sealed Orders” The Fourth Doctor

March
10 John Flanagan and Andrew McCulloch are commissioned to write Meglos Meglos
14 Peter Grimwade is commissioned to provide a storyline for Time-Flight Time-Flight
14 Keith Miles is commissioned to provide a storyline entitled “Mark Of Lumos” The Fourth Doctor
18 Two storylines are commissioned: “Farer Nohan” by Andrew Stephenson, and “Mouth Of Grath” by Malcolm Edwards and Leroy Kettle The Fourth Doctor
20 Location filming for The Leisure Hive takes place in Brighton, East Sussex The Leisure Hive
21 Location filming for The Leisure Hive takes place in Brighton, East Sussex The Leisure Hive
24 Christopher Priest is commissioned to write “Sealed Orders” The Fourth Doctor
29 Jack Gardner is commissioned to provide a storyline for “The Dogs Of Darkness” The Fourth Doctor
31 Andrew Smith is commissioned to write the final three episodes of Full Circle Full Circle

April
2 Recording for The Leisure Hive takes place in BBC Television Centre Studio 1 The Leisure Hive
3 Matthew Waterhouse is contracted to play Adric in twenty-four episodes covering the final six stories of Season Eighteen, with an option for twenty-eight more Adric
3 Recording for The Leisure Hive takes place in BBC Television Centre Studio 1 The Leisure Hive
4 Recording for The Leisure Hive takes place in BBC Television Centre Studio 1 The Leisure Hive
10 Christopher Bailey is commissioned to provide a storyline for Kinda Kinda
10 John Bennett is commissioned to provide a storyline entitled “Soldar And The Plastoids” The Fourth Doctor
12 In St. John's, Newfoundland the Marathon of Hope begins as amputee Terry Fox attempts to run across Canada in aid of cancer research
14 Stephen Gallagher is commissioned to write Warriors' Gate Warriors' Gate
18 Recording for The Leisure Hive takes place in BBC Television Centre Studio 3 The Leisure Hive
19 Recording for The Leisure Hive takes place in BBC Television Centre Studio 3 The Leisure Hive
20 Recording for The Leisure Hive takes place in BBC Television Centre Studio 3 The Leisure Hive
21 Recording for The Leisure Hive takes place in BBC Television Centre Studio 3 The Leisure Hive
30 John Nathan-Turner consults with director Pennant Roberts about completing the remaining studio sessions for Shada in October, with a view to broadcasting the story as two episodes over Christmas Shada
30 Location filming for State Of Decay takes place in Burnham, Buckinghamshire; Matthew Waterhouse joins the regular Doctor Who cast State Of Decay

May
1 Location filming for State Of Decay takes place in Burnham, Buckinghamshire State Of Decay
2 Location filming for State Of Decay takes place in Burnham, Buckinghamshire State Of Decay
9 The casting of Matthew Waterhouse as new companion Adric is announced to the press Adric
15 Recording for State Of Decay takes place in BBC Television Centre Studio 3 State Of Decay
16 Recording for State Of Decay takes place in BBC Television Centre Studio 3 State Of Decay
20 Filming for State Of Decay takes place at the BBC Visual Effects Workshop State Of Decay
21 Filming for State Of Decay takes place at the BBC Visual Effects Workshop State Of Decay
22 Pac-Man, the best-selling arcade game of all time, is released in Japan
29 Recording for State Of Decay takes place in BBC Television Centre Studio 6 State Of Decay
30 Recording for State Of Decay takes place in BBC Television Centre Studio 6 State Of Decay
31 Recording for State Of Decay takes place in BBC Television Centre Studio 6 State Of Decay

June
12 Christopher H Bidmead issues a document detailing the E-Space storyline that will run through much of Season Eighteen The Fourth Doctor
13 Terence Greer is commissioned to provide a storyline for “Psychrons” The Fourth Doctor
mid
Jun
John Nathan-Turner's announcement that K·9 would appear in twenty episodes during Season Eighteen is, in fact, a covert acknowledgment that the character is being written out of Doctor Who in Warriors' Gate K·9
25 A lack of studio space forces John Nathan-Turner to abandon his plans to complete Shada as a Christmas special Shada
25 Recording for Meglos takes place in BBC Television Centre Studio 8 Meglos
26 Recording for Meglos takes place in BBC Television Centre Studio 8 Meglos
27 Recording for Meglos takes place in BBC Television Centre Studio 8 Meglos

July
10 Recording for Meglos takes place in BBC Television Centre Studio 3 Meglos
11 Recording for Meglos takes place in BBC Television Centre Studio 3 Meglos
12 Recording for Meglos takes place in BBC Television Centre Studio 3 Meglos
18 Johnny Byrne is commissioned to write The Keeper Of Traken The Keeper Of Traken
23 Location filming for Full Circle takes place in Fulmer, Buckinghamshire Full Circle
24 Location filming for Full Circle takes place in Fulmer, Buckinghamshire Full Circle
25 Location filming for Full Circle takes place in Fulmer, Buckinghamshire Full Circle
late
Jul
The BBC shelves plans to have location filming take place in Australia for Season Nineteen The Fifth Doctor

August
1 After John Nathan-Turner fails to entice Elisabeth Sladen or Louise Jameson back to Doctor Who, an outline for a new companion called Tegan Jovanka is issued; the character is Australian in a bid to jumpstart negotiations with the ABC for filming in that country Tegan Jovanka
7 Recording for Full Circle takes place in BBC Television Centre Studio 3 Full Circle
8 Recording for Full Circle takes place in BBC Television Centre Studio 3 Full Circle
15 John Flanagan and Andrew McCulloch are commissioned to provide a storyline for “Project Zeta-Sigma”, intended to be the Fifth Doctor's debut adventure The Fifth Doctor
17 Two-month-old Azaria Chamberlain disappears at Ayers Rock, Australia; her mother, Lindy, spends three years in prison, although it is later determined that Azaria was taken by a dingo
21 Recording for Full Circle takes place in BBC Television Centre Studio 6 Full Circle
22 Recording for Full Circle takes place in BBC Television Centre Studio 6 Full Circle
23 Recording for Full Circle takes place in BBC Television Centre Studio 6 Full Circle
29 Director Paul Joyce receives permission to substantially overhaul Warriors' Gate, although he refuses to take a writing credit Warriors' Gate
29 Christopher H Bidmead receives staff clearance to write Logopolis; by now, he has decided to step down as Doctor Who's script editor after Season Eighteen Logopolis
29 Terence Dudley is commissioned to provide a storyline for Four To Doomsday Four To Doomsday
30 Debut broadcast of The Leisure Hive episode one on BBC1; a new title sequence, created by Sid Sutton and used from 1980 to 1986, is introduced The Leisure Hive
late
Aug
Johnny Byrne revises The Keeper Of Traken to incorporate the Master The Keeper Of Traken
late
Aug
Despite the planned introduction of Tegan Jovanka, the ABC in Australia again passes on a coproduction deal for Doctor Who The Fifth Doctor

September
6 Debut broadcast of The Leisure Hive episode two on BBC1 The Leisure Hive
12 Anthony Ainley is contracted to play the Master in The Keeper Of Traken and Logopolis, with an option for eight further episodes in Season Nineteen The
Master
13 Debut broadcast of The Leisure Hive episode three on BBC1 The Leisure Hive
17 Planned studio recording for Warriors' Gate is postponed due to industrial action Warriors' Gate
18 Planned studio recording for Warriors' Gate is postponed due to industrial action Warriors' Gate
19 Planned studio recording for Warriors' Gate is postponed due to industrial action Warriors' Gate
20 Debut broadcast of The Leisure Hive episode four on BBC1 The Leisure Hive
22 Hoping to take advantage of the Iranian Revolution, Iraq invades and instigates the Iran-Iraq War
22 Peter Grimwade is commissioned to write Time-Flight Time-Flight
23 Eric Saward is commissioned to provide a storyline for The Visitation The Visitation
24 Recording for Warriors' Gate takes place in BBC Television Centre Studio 6 Warriors' Gate
25 Christopher Bailey is commissioned to write Kinda Kinda
25 Recording for Warriors' Gate takes place in BBC Television Centre Studio 6 Warriors' Gate
26 Recording for Warriors' Gate takes place in BBC Television Centre Studio 6 Warriors' Gate
27 Debut broadcast of Meglos episode one on BBC1 Meglos

October
2 Recording for Warriors' Gate takes place in BBC Television Centre Studio 1 Warriors' Gate
3 Recording for Warriors' Gate takes place in BBC Television Centre Studio 1 Warriors' Gate
4 Debut broadcast of Meglos episode two on BBC1 Meglos
4 Recording for Warriors' Gate takes place in BBC Television Centre Studio 6; production assistant Graeme Harper has largely taken over as director due to Paul Joyce's exhaustion and on-set tensions; Lalla Ward leaves Doctor Who Warriors' Gate
7 John Flanagan and Andrew McCulloch are commissioned to write “Project Zeta-Sigma” The Fifth Doctor
9 Sarah Sutton is contracted to play Nyssa in The Keeper Of Traken; Nathan-Turner has become fond of the character and is considering retaining her as a companion, so Sutton's contract includes an option for a further twenty-eight episodes Nyssa
11 Debut broadcast of Meglos episode three on BBC1 Meglos
18 Debut broadcast of Meglos episode four on BBC1 Meglos
23 Janet Fielding is contracted to play new companion Tegan Jovanka in three serials beginning with Logopolis, with an option for twelve further episodes; a photocall to introduce Fielding as Tegan is also held Tegan Jovanka
24 The press reports that Tom Baker will leave Doctor Who after Season Eighteen; Baker has become tired of the role, dislikes the changes instituted by John Nathan-Turner, and finds it difficult to relate to his young castmates The Fourth Doctor
25 Debut broadcast of Full Circle episode one on BBC1 Full Circle

November
1 Debut broadcast of Full Circle episode two on BBC1 Full Circle
5 Peter Davison announces on Nationwide that he has accepted the role of the Fifth Doctor The Fifth Doctor
5 Recording for The Keeper Of Traken takes place in BBC Television Centre Studio 6; Nathan-Turner has elected to take up Sarah Sutton's contract option, so this marks her first day as a member of the regular Doctor Who cast The Keeper Of Traken
6 Recording for The Keeper Of Traken takes place in BBC Television Centre Studio 6 The Keeper Of Traken
7 Recording for The Keeper Of Traken takes place in BBC Television Centre Studio 6 The Keeper Of Traken
8 Debut broadcast of Full Circle episode three on BBC1 Full Circle
11 Peter Davison is contracted to play the Fifth Doctor for Season Nineteen The Fifth Doctor
15 Debut broadcast of Full Circle episode four on BBC1 Full Circle
20 Eric Saward is commissioned to write The Visitation The Visitation
21 The press reports that Sarah Sutton has joined the Doctor Who cast Nyssa
21 Recording for The Keeper Of Traken takes place in BBC Television Centre Studio 8 The Keeper Of Traken
22 Debut broadcast of State Of Decay episode one on BBC1 State Of Decay
22 Recording for The Keeper Of Traken takes place in BBC Television Centre Studio 8 The Keeper Of Traken
23 Recording for The Keeper Of Traken in BBC Television Centre Studio 8 is postponed due to industrial action The Keeper Of Traken
25 Andrew Smith is commissioned to provide a storyline for “The Torson Triumvirate” The Fifth Doctor
26 A photocall is held to introduce Sarah Sutton as new companion Nyssa Nyssa
29 Debut broadcast of State Of Decay episode two on BBC1 State Of Decay

December
5 Eric Saward is commissioned to provide a storyline for Earthshock Earthshock
5 Christopher Priest is commissioned to provide a storyline for “The Enemy Within”, and Rod Beacham for “Hebos” The Fifth Doctor
6 Debut broadcast of State Of Decay episode three on BBC1 State Of Decay
8 In New York City, John Lennon is shot and killed by Mark David Chapman
9 Christopher H Bidmead conveys a storyline entitled “Romanoids” by Geoff Lowe, submitted the previous summer, to John Nathan-Turner The Fourth Doctor
13 Debut broadcast of State Of Decay episode four on BBC1 State Of Decay
16 Location filming for Logopolis takes place in London; Janet Fielding joins the regular Doctor Who cast Logopolis
17 Recording for The Keeper Of Traken takes place in BBC Television Centre Studio 6 The Keeper Of Traken
19 Location filming for Logopolis takes place between Denham and Amersham in Buckinghamshire Logopolis
22 Location filming for Logopolis takes place between Denham and Amersham in Buckinghamshire Logopolis
23 Terence Dudley is commissioned to write Four To Doomsday Four To Doomsday
late
Dec
Christopher H Bidmead leaves Doctor Who, to be replaced as script editor on an interim basis by Antony Root The Fourth Doctor