The Doctor Who Production Diary: 1983

January
1 ARPANET adopts the TCP/IP protocol, effectively launching the Internet; the first major Doctor Who-related Internet entity, the Usenet newsgroup net.tv.drwho (later renamed rec.arts.drwho), would be created on December 19th
3 Debut broadcast of Arc Of Infinity episode one on BBC One Arc Of Infinity
3 Because of the shift in the recording dates for Enlightenment, Season Twenty is officially truncated to just twenty-two episodes; “The Return” is postponed to Season Twenty-One where it will become Resurrection Of The Daleks Resurrection Of The Daleks
4 Location filming for “The Return” is cancelled due to industrial action Resurrection Of The Daleks
5 Debut broadcast of Arc Of Infinity episode two on BBC One Arc Of Infinity
5 Location filming for “The Return” is cancelled due to industrial action Resurrection Of The Daleks
5 Robin Squire is commissioned to provide a storyline for “Ghost Planet” The Fifth Doctor
10 Clearance is obtained for the inclusion of scenes from Shada in The Five Doctors The Five Doctors
11 Debut broadcast of Arc Of Infinity episode three on BBC One Arc Of Infinity
12 Debut broadcast of Arc Of Infinity episode four on BBC One Arc Of Infinity
16 Recording for The King's Demons takes place at BBC Television Centre Studio 1 in White City, London The King's Demons
17 Recording for Enlightenment takes place at BBC Television Centre Studio 1 in White City, London Enlightenment
18 Debut broadcast of Snakedance episode one on BBC One Snakedance
18 Recording for Enlightenment takes place at BBC Television Centre Studio 1 in White City, London Enlightenment
19 Debut broadcast of Snakedance episode two on BBC One Snakedance
25 Debut broadcast of Snakedance episode three on BBC One Snakedance
26 Debut broadcast of Snakedance episode four on BBC One Snakedance
27 Philip Martin is commissioned to write the final four episodes of Vengeance On Varos Vengeance On Varos
30 Recording for Enlightenment takes place at BBC Television Centre Studio 1 in White City, London Enlightenment
31 Recording for Enlightenment takes place at BBC Television Centre Studio 1 in White City, London Enlightenment

February
1 Debut broadcast of Mawdryn Undead episode one on BBC One Mawdryn Undead
1 Recording for Enlightenment takes place at BBC Television Centre Studio 1 in White City, London Enlightenment
2 Debut broadcast of Mawdryn Undead episode two on BBC One Mawdryn Undead
6 Elisabeth Sladen is contracted for The Five Doctors Sarah Jane
Smith
8 Having decided to leave Doctor Who, Mark Strickson is contracted for twenty episodes during Season Twenty-One Vizlor Turlough
8 Debut broadcast of Mawdryn Undead episode three on BBC One Mawdryn Undead
9 Debut broadcast of Mawdryn Undead episode four on BBC One Mawdryn Undead
15 Debut broadcast of Terminus episode one on BBC One Terminus
16 Debut broadcast of Terminus episode two on BBC One Terminus
21 Deborah Watling is contracted for The Five Doctors Victoria Waterfield
21 Wendy Padbury is contracted for The Five Doctors Zoe Heriot
21 Caroline John is contracted for The Five Doctors Liz Shaw
22 Debut broadcast of Terminus episode three on BBC One Terminus
23 Debut broadcast of Terminus episode four on BBC One Terminus
28 The final episode of the comedy-drama M*A*S*H is watched by more than 100 million people, the largest non-sports audience ever in the United States

March
1 Debut broadcast of Enlightenment episode one on BBC One Enlightenment
2 Debut broadcast of Enlightenment episode two on BBC One Enlightenment
4 Other commitments result in Deborah Watling being released from her contract for The Five Doctors Victoria Waterfield
5 Recording for The Five Doctors takes place in Llanforthen, Wales The Five Doctors
7 John Nathan-Turner arranges for Frazer Hines to make a cameo appearance in The Five Doctors Jamie McCrimmon
7 Recording for The Five Doctors takes place in Blaenau Ffestiniog, Wales The Five Doctors
8 Debut broadcast of Enlightenment episode three on BBC One Enlightenment
8 Recording for The Five Doctors takes place in Blaenau Ffestiniog, Wales The Five Doctors
9 Debut broadcast of Enlightenment episode four on BBC One Enlightenment
9 Recording for The Five Doctors takes place in Blaenau Ffestiniog, Wales The Five Doctors
10 Recording for The Five Doctors takes place in Blaenau Ffestiniog, Wales The Five Doctors
11 Recording for The Five Doctors takes place in Wales, at Blaenau Ffestiniog and Llanfrothen The Five Doctors
13 Recording for The Five Doctors takes place in Blaenau Ffestiniog, Wales The Five Doctors
14 Recording for The Five Doctors takes place in Blaenau Ffestiniog, Wales The Five Doctors
15 Debut broadcast of The King's Demons episode one on BBC One The King's Demons
15 Recording for The Five Doctors takes place in Llanbedr, Wales The Five Doctors
16 Debut broadcast of The King's Demons episode two on BBC One The King's Demons
17 Recording for The Five Doctors takes place in Denham Green, Buckinghamshire and Uxbridge, London The Five Doctors
18 Recording for The Five Doctors takes place at the BBC Television Film Studios in Ealing, London The Five Doctors
21 Birth of Bruno Langley (bio), who played Adam Mitchell
23 US President Ronald Reagan proposes the Strategic Defense Initiative -- the missle-intercepting technology subsequently dubbed “Star Wars”
29 Recording for The Five Doctors takes place at BBC Television Centre Studio 6 in White City, London The Five Doctors
29 Peter Grimwade is commissioned to provide a storyline for Planet Of Fire Planet Of Fire
30 Recording for The Five Doctors takes place at BBC Television Centre Studio 6 in White City, London The Five Doctors
31 Recording for The Five Doctors takes place at BBC Television Centre Studio 6 in White City, London The Five Doctors

April
20 Peter Grimwade is commissioned to write Planet Of Fire Planet Of Fire
21 Birth of Gugu Mbatha-Raw (bio), who played Tish Jones

May
6 Robert Holmes is commissioned to provide a storyline for The Caves Of Androzani The Caves Of Androzani
11 Glen McCoy is commissioned to provide a storyline for Timelash Timelash
31 Birth of Reggie Yates (bio), who played Leo Jones
late
May
With Peter Davison, Janet Fielding and Mark Strickson all indicating their intention to leave Doctor Who, John Nathan-Turner and Eric Saward make plans to write out Kamelion, Tegan and Turlough -- and regenerate the Doctor -- before the end of Season Twenty-One, with a new Doctor and companion in place for its final story; Davison is unhappy that he will not complete three full seasons The Fifth Doctor

June
10 Colin Baker is offered the role of the Sixth Doctor The Sixth Doctor
15 Scheduled recording for Warriors Of The Deep at the BBC Television Film Studios in Ealing, London is cancelled due to the reallocation of facilities to cover the General Election Warriors Of The Deep
18 Aboard the Challenger, physicist Sally Ride becomes the first American woman in space; she is preceded by two female cosmonauts from the Soviet Union
23 Recording for Warriors Of The Deep takes place at BBC Television Centre Studio 6 in White City, London; this occurs a week earlier than planned due to the change in schedules provoked by the General Election Warriors Of The Deep
24 Glen McCoy is commissioned to write the first episode of Timelash Timelash
24 Recording for Warriors Of The Deep takes place at BBC Television Centre Studio 6 in White City, London Warriors Of The Deep
28 Recording for Warriors Of The Deep takes place in Marchwood, Hampshire Warriors Of The Deep
29 Recording for Warriors Of The Deep takes place at Shepperton Studios in Shepperton, Surrey Warriors Of The Deep
30 Recording for Warriors Of The Deep takes place at Shepperton Studios in Shepperton, Surrey Warriors Of The Deep

July
4 Recording for Warriors Of The Deep takes place at the BBC Visual Effects Workshop in Acton, London Warriors Of The Deep
5 Nicola Bryant is introduced to the press as new companion Peri Brown Peri Brown
5 Recording for Warriors Of The Deep takes place at the BBC Visual Effects Workshop in Acton, London Warriors Of The Deep
6 Recording for Warriors Of The Deep takes place at the BBC Visual Effects Workshop in Acton, London Warriors Of The Deep
7 Recording for Warriors Of The Deep takes place at the BBC Visual Effects Workshop in Acton, London Warriors Of The Deep
12 Peter Ling and Hazel Adair are commissioned to provide a storyline for “Hex” The Fifth Doctor
13 Recording for Warriors Of The Deep takes place at BBC Television Centre Studio 6 in White City, London Warriors Of The Deep
14 Recording for Warriors Of The Deep takes place at BBC Television Centre Studio 6 in White City, London Warriors Of The Deep
15 Recording for Warriors Of The Deep takes place at BBC Television Centre Studio 6 in White City, London Warriors Of The Deep
17 Christopher Bailey is commissioned to write “The Children Of Seth”, a revised version of “May Time” The Sixth Doctor
19 Recording for The Awakening takes place in Dorset, at Tarrant Monkton and Shapwick The Awakening
19 Anthony Steven delivers a storyline for The Twin Dilemma The Twin Dilemma
20 Recording for The Awakening takes place in Shapwick, Dorset The Awakening
21 Recording for The Awakening takes place in Martin, Hampshire The Awakening
22 Recording for The Awakening takes place in Martin, Hampshire The Awakening
28 A press conference is held to announce that Peter Davison will be leaving Doctor Who during Season Twenty-One The Fifth Doctor
28 Robert Holmes is commissioned write The Caves Of Androzani The Caves Of Androzani
late
Jul
Consideration is given to retaining the character of Will Chandler, played by Keith Jayne in The Awakening, as a new companion; John Nathan-Turner and Eric Saward ultimately decide against it The Awakening

August
1 Peter Arne, cast as Mr Range in Frontios, is murdered after returning home from his costume fitting Frontios
2 Anthony Steven is commissioned to write the first episode of The Twin Dilemma The Twin Dilemma
4 Recording for The Awakening takes place at BBC Television Centre Studio 6 in White City, London The Awakening
5 Recording for The Awakening takes place at BBC Television Centre Studio 6 in White City, London The Awakening
6 Recording for The Awakening takes place at BBC Television Centre Studio 6 in White City, London The Awakening
9 Nicola Bryant is contracted for twelve episodes starting with Planet Of Fire, with an option for the entirety of Seasons Twenty-Two and Twenty-Three Peri Brown
14 Brian Finch is commissioned to write “Leviathan” The Sixth Doctor
19 The BBC announces that Colin Baker will play the Sixth Doctor The Sixth Doctor
24 Recording for Frontios takes place at BBC Television Centre Studio 6 in White City, London Frontios
24 Anthony Steven is commissioned to write the final three episodes of The Twin Dilemma The Twin Dilemma
25 Recording for Frontios takes place at BBC Television Centre Studio 6 in White City, London Frontios
26 Recording for Frontios takes place at BBC Television Centre Studio 6 in White City, London Frontios

September
1 The Soviet Union shoots down a Korean commercial airliner, killing all aboard including a US congressman
7 Recording for Frontios takes place at BBC Television Centre Studio 6 in White City, London Frontios
8 Recording for Frontios takes place at BBC Television Centre Studio 6 in White City, London Frontios
9 Recording for Frontios takes place at BBC Television Centre Studio 6 in White City, London Frontios
11 Recording for Resurrection Of The Daleks takes place in Bermondsey, London Resurrection Of The Daleks
12 Recording for Resurrection Of The Daleks takes place in Bermondsey, London Resurrection Of The Daleks
21 Recording for Resurrection Of The Daleks takes place at BBC Television Centre Studio 8 in White City, London Resurrection Of The Daleks
22 Recording for Resurrection Of The Daleks takes place at BBC Television Centre Studio 8 in White City, London Resurrection Of The Daleks
23 Recording for Resurrection Of The Daleks takes place at BBC Television Centre Studio 8 in White City, London Resurrection Of The Daleks
30 Colin Baker is contracted for the final five episodes of Season Twenty-One, beginning with the last installment of The Caves Of Androzani The Sixth Doctor
30 Pip Baker and Jane Baker are commissioned to provide a storyline for The Mark Of The Rani The Mark Of The Rani

October
4 Colin Baker is contracted for Season Twenty-Two, with an option for three additional years The Sixth Doctor
5 Recording for Resurrection Of The Daleks takes place at BBC Television Centre Studio 6 in White City, London Resurrection Of The Daleks
6 Recording for Resurrection Of The Daleks takes place at BBC Television Centre Studio 6 in White City, London Resurrection Of The Daleks
7 Recording for Resurrection Of The Daleks takes place at BBC Television Centre Studio 6 in White City, London Resurrection Of The Daleks
14 Recording for Planet Of Fire takes place at Playa del Papagayo, Lanzarote, Spain Planet Of Fire
15 Recording for Planet Of Fire takes place in Lanzarote, Spain, at Mirador del Rio and Órzola Planet Of Fire
17 Recording for Planet Of Fire takes place at the Parque Nacional de Timanfaya, Lanzarote, Spain Planet Of Fire
18 Recording for Planet Of Fire takes place at the Parque Nacional de Timanfaya, Lanzarote, Spain Planet Of Fire
19 Recording for Planet Of Fire takes place at the Parque Nacional de Timanfaya, Lanzarote, Spain Planet Of Fire
25 The United States invades Grenada in response to an incursion by Cuban forces
26 Recording for Planet Of Fire takes place at BBC Television Centre Studio 1 in White City, London Planet Of Fire
27 Recording for Planet Of Fire takes place at BBC Television Centre Studio 1 in White City, London Planet Of Fire

November
7 Pip Baker and Jane Baker are commissioned to write The Mark Of The Rani The Mark Of The Rani
9 Recording for Planet Of Fire takes place at BBC Television Centre Studio 6 in White City, London Planet Of Fire
10 Recording for Planet Of Fire takes place at BBC Television Centre Studio 6 in White City, London Planet Of Fire
11 Recording for Planet Of Fire takes place at BBC Television Centre Studio 6 in White City, London Planet Of Fire
15 Recording for The Caves Of Androzani takes place in Stokeford, Dorset The Caves Of Androzani
16 Recording for The Caves Of Androzani takes place in Stokeford, Dorset The Caves Of Androzani
17 Recording for The Caves Of Androzani takes place in Stokeford, Dorset The Caves Of Androzani
22 Because the BBC's broadcast of the 1984 Winter Olympics will occupy Doctor Who's timeslots when Resurrection Of The Daleks would normally air, it's decided to instead re-edit the serial into two forty-five-minute episodes Resurrection Of The Daleks
23 Debut broadcast of The Five Doctors; this occurs on Public Broadcasting Service stations in the United States, marking the first instance of a Doctor Who episode premiering outside of the United Kingdom The Five Doctors
23 Glen McCoy is commissioned to write the remainder of Timelash, which will now be revised from four twenty-five-minute episodes to two forty-five-minute episodes Timelash
25 The Five Doctors is broadcast on BBC One for the first time The Five Doctors
28 Philip Martin is commissioned to revise Vengeance On Varos from four twenty-five-minute episodes to two forty-five-minute episodes Vengeance On Varos
late
Nov
Patrick Troughton accepts John Nathan-Turner's offer to return to Doctor Who for a story which pairs him with the Sixth Doctor, Colin Baker The Second Doctor

December
1 Studio recording for The Caves Of Androzani is cancelled due to industrial action The Caves Of Androzani
2 Michael Jackson's landmark, cinematic video for his single Thriller debuts on MTV
2 Studio recording for The Caves Of Androzani is cancelled due to industrial action The Caves Of Androzani
7 Joan Paget's “A Tree In Eden” is rejected The Fifth Doctor
15 Recording for The Caves Of Androzani takes place at BBC Television Centre Studio 6 in White City, London The Caves Of Androzani
16 Recording for The Caves Of Androzani takes place at BBC Television Centre Studio 6 in White City, London The Caves Of Androzani
17 Recording for The Caves Of Androzani takes place at BBC Television Centre Studio 6 in White City, London The Caves Of Androzani
21 Colin Davis' “The Count Of Vladimir” is rejected The Fifth Doctor
28 Philip Martin proposes “Doomwraiths”, “Space Sargasso” and “Valley Of Shadows” The Sixth Doctor
29 In Syria, the Reverend Jesse Jackson secures the release of a US Navy aviator who had been shot down over Lebanon