The Doctor Who Production Diary: 1980

January
5 Debut broadcast of The Horns Of Nimon episode three on BBC One The Horns Of Nimon
12 Debut broadcast of The Horns Of Nimon episode four on BBC One 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
18 Tom Baker is contracted for Season Eighteen The Fourth Doctor
21 Birth of Sarah Dollard (bio), writer
24 Terrance Dicks is commissioned to write a revised version of his unused 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
4 Death of David Whitaker (bio), story editor and writer
11 John Leeson is contracted for eight episodes during Season Eighteen; David Brierley has left the programme after John Nathan-Turner refused to guarantee 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
17 Steve Gallagher is commissioned to provide a storyline for Warriors' Gate Warriors' Gate
18 Two storylines are commissioned: “Farer Nohan” by Andrew Stephenson, and “Mouth Of Grath” by Malcolm Edwards and Leroy Kettle The Fourth Doctor
20 Recording for The Leisure Hive takes place in Brighton, East Sussex The Leisure Hive
21 Recording 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 at BBC Television Centre Studio 1 in White City, London 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 at BBC Television Centre Studio 1 in White City, London The Leisure Hive
4 Recording for The Leisure Hive takes place at BBC Television Centre Studio 1 in White City, London 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 at BBC Television Centre Studio 3 in White City, London The Leisure Hive
19 Recording for The Leisure Hive takes place at BBC Television Centre Studio 3 in White City, London The Leisure Hive
20 Recording for The Leisure Hive takes place at BBC Television Centre Studio 3 in White City, London The Leisure Hive
21 Recording for The Leisure Hive takes place at BBC Television Centre Studio 3 in White City, London 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 fifty-minute episodes over Christmas Shada
30 Recording for State Of Decay takes place in Burnham, Buckinghamshire State Of Decay

May
1 Recording for State Of Decay takes place in Burnham, Buckinghamshire State Of Decay
2 Recording for State Of Decay takes place in Burnham, Buckinghamshire and Acton, London State Of Decay
8 The World Health Organisation certifies that smallpox has been eradicated
8 The casting of Matthew Waterhouse as new companion Adric is announced to the press Adric
15 Recording for State Of Decay takes place at BBC Television Centre Studio 3 in White City, London State Of Decay
16 Recording for State Of Decay takes place at BBC Television Centre Studio 3 in White City, London State Of Decay
20 Recording for State Of Decay takes place at the BBC Visual Effects Workshop in Acton, London State Of Decay
21 Recording for State Of Decay takes place at the BBC Visual Effects Workshop in Acton, London State Of Decay
22 Pac-Man, the best-selling arcade game of all time, is released in Japan
24 Lalla Ward reveals in a press interview that she is leaving Doctor Who The Second Romana
29 Recording for State Of Decay takes place at BBC Television Centre Studio 6 in White City, London State Of Decay
30 Recording for State Of Decay takes place at BBC Television Centre Studio 6 in White City, London State Of Decay
31 Recording for State Of Decay takes place at BBC Television Centre Studio 6 in White City, London State Of Decay

June
1 The Cable News Network, better known as CNN, debuts as the world's first twenty-four-hour news channel
4 Recording for State Of Decay takes place at the BBC Visual Effects Workshop in Acton, London State Of Decay
7 Press reports emerge that K·9 is about to be dropped from Doctor Who, prompting a “Save K·9” letter-writing campaign K·9
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
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 at BBC Television Centre Studio 8 in White City, London Meglos
26 Recording for Meglos takes place at BBC Television Centre Studio 8 in White City, London Meglos
27 Recording for Meglos takes place at BBC Television Centre Studio 8 in White City, London Meglos

July
10 Recording for Meglos takes place at BBC Television Centre Studio 3 in White City, London Meglos
11 Recording for Meglos takes place at BBC Television Centre Studio 3 in White City, London Meglos
12 Birth of Tom Price (bio), who played PC Andy Davidson
12 Recording for Meglos takes place at BBC Television Centre Studio 3 in White City, London Meglos
18 Johnny Byrne is commissioned to write The Keeper Of Traken The Keeper Of Traken
23 Recording for Full Circle takes place in Fulmer, Buckinghamshire Full Circle
24 Recording for Full Circle takes place in Fulmer, Buckinghamshire Full Circle
25 Recording for Full Circle takes place in Fulmer, Buckinghamshire Full Circle
late
Jul
A stalemate in negotiations with the Australian Broadcasting Commission precludes plans for location filming in Australia during 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; in a bid to jumpstart co-production discussions with the Australian Broadcasting Commission, Tegan will hail from that country Tegan Jovanka
6 Birth of Tom MacRae (bio), writer
7 Recording for Full Circle takes place at BBC Television Centre Studio 3 in White City, London Full Circle
8 Recording for Full Circle takes place at BBC Television Centre Studio 3 in White City, London 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 at BBC Television Centre Studio 6 in White City, London Full Circle
22 Recording for Full Circle takes place at BBC Television Centre Studio 6 in White City, London Full Circle
23 Recording for Full Circle takes place at BBC Television Centre Studio 6 in White City, London 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 BBC One; 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 Australian companion Tegan Jovanka, the Australian Broadcasting Commission again passes on a co-production deal for Doctor Who The Fifth Doctor

September
6 Debut broadcast of The Leisure Hive episode two on BBC One 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 BBC One The Leisure Hive
17 A labour dispute cancels recording for Warriors' Gate Warriors' Gate
17 Eric Saward is commissioned to provide a storyline for The Visitation The Visitation
18 A labour dispute cancels recording for Warriors' Gate Warriors' Gate
19 A labour dispute cancels recording for Warriors' Gate Warriors' Gate
20 Debut broadcast of The Leisure Hive episode four on BBC One 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
24 Recording for Warriors' Gate takes place at BBC Television Centre Studio 6 in White City, London Warriors' Gate
25 Recording for Warriors' Gate takes place at BBC Television Centre Studio 6 in White City, London Warriors' Gate
25 Christopher Bailey is commissioned to write Kinda Kinda
26 Recording for Warriors' Gate takes place at BBC Television Centre Studio 6 in White City, London Warriors' Gate
27 Debut broadcast of Meglos episode one on BBC One Meglos

October
2 Recording for Warriors' Gate takes place at BBC Television Centre Studio 1 in White City, London Warriors' Gate
3 Recording for Warriors' Gate takes place at BBC Television Centre Studio 1 in White City, London Warriors' Gate
4 Debut broadcast of Meglos episode two on BBC One Meglos
4 Recording for Warriors' Gate takes place at BBC Television Centre Studio 1 in White City, London; production assistant Graeme Harper has largely taken over as director due to Paul Joyce's exhaustion and on-set tensions Warriors' Gate
7 Birth of Mike Bartlett (bio), writer
7 Despite John Nathan-Turner's earlier denials, the BBC confirms that K·9 will be leaving Doctor Who after all K·9
7 John Flanagan and Andrew McCulloch are commissioned to write “Project Zeta-Sigma” The Fifth Doctor
9 With John Nathan-Turner considering retaining Nyssa as a companion, Sarah Sutton's contract for The Keeper Of Traken is revised to include an option for a further twenty-eight episodes Nyssa
11 Debut broadcast of Meglos episode three on BBC One Meglos
18 Debut broadcast of Meglos episode four on BBC One 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 BBC One Full Circle
30 A character outline is issued for Nyssa Nyssa

November
1 Debut broadcast of Full Circle episode two on BBC One Full Circle
4 Former actor Ronald Reagan defeats incumbent Jimmy Carter to become President of the United States
4 Peter Davison is announced to the press as the Fifth Doctor The Fifth Doctor
5 John Nathan-Turner informs Sarah Sutton that her contract option is being taken up, meaning that she is now a member of the regular cast Nyssa
5 Recording for The Keeper Of Traken takes place at BBC Television Centre Studio 6 in White City, London The Keeper Of Traken
6 Recording for The Keeper Of Traken takes place at BBC Television Centre Studio 6 in White City, London The Keeper Of Traken
7 Recording for The Keeper Of Traken takes place at BBC Television Centre Studio 6 in White City, London The Keeper Of Traken
8 Debut broadcast of Full Circle episode three on BBC One Full Circle
15 Debut broadcast of Full Circle episode four on BBC One Full Circle
16 Birth of Alexa Havins (bio), who played Esther Drummond
18 Peter Davison is contracted to play the Fifth Doctor for Season Nineteen The Fifth Doctor
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 at BBC Television Centre Studio 8 in White City, London The Keeper Of Traken
22 Debut broadcast of State Of Decay episode one on BBC One State Of Decay
22 Recording for The Keeper Of Traken takes place at BBC Television Centre Studio 8 in White City, London The Keeper Of Traken
23 A labour dispute cancels recording for The Keeper Of Traken at BBC Television Centre Studio 8 in White City, London The Keeper Of Traken
25 Andrew Smith is commissioned to provide a storyline for “The Torson Triumvirate” The Fifth Doctor
29 Debut broadcast of State Of Decay episode two on BBC One 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 BBC One 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 BBC One State Of Decay
16 Recording for Logopolis takes place in London, at Battersea and Chelsea Logopolis
17 Recording for The Keeper Of Traken takes place at BBC Television Centre Studio 6 in White City, London The Keeper Of Traken
17 Recording for Logopolis takes place in Denham, Buckinghamshire Logopolis
18 Recording for Logopolis takes place in Sonning Common, Berkshire Logopolis
19 Recording for Logopolis takes place in Denham, Buckinghamshire Logopolis
22 Recording for Logopolis takes place in Denham, 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