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 BBC1 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
5 Debut broadcast of Arc Of Infinity episode two on BBC1 Arc Of Infinity
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 BBC1 Arc Of Infinity
12 Debut broadcast of Arc Of Infinity episode four on BBC1 Arc Of Infinity
16 Recording for The King's Demons takes place in BBC Television Centre Studio 1 The King's Demons
17 Recording for Enlightenment takes place in BBC Television Centre Studio 1 Enlightenment
18 Debut broadcast of Snakedance episode one on BBC1 Snakedance
18 Recording for Enlightenment takes place in BBC Television Centre Studio 1 Enlightenment
19 Debut broadcast of Snakedance episode two on BBC1 Snakedance
25 Debut broadcast of Snakedance episode three on BBC1 Snakedance
26 Debut broadcast of Snakedance episode four on BBC1 Snakedance
27 Philip Martin is commissioned to write the final three episodes of “Domain” Vengeance On Varos
30 Recording for Enlightenment takes place in BBC Television Centre Studio 1 Enlightenment
31 Recording for Enlightenment takes place in BBC Television Centre Studio 1 Enlightenment

February
1 Debut broadcast of Mawdryn Undead episode one on BBC1 Mawdryn Undead
1 Recording for Enlightenment takes place in BBC Television Centre Studio 1 Enlightenment
2 Debut broadcast of Mawdryn Undead episode two on BBC1 Mawdryn Undead
8 Debut broadcast of Mawdryn Undead episode three on BBC1 Mawdryn Undead
9 Debut broadcast of Mawdryn Undead episode four on BBC1 Mawdryn Undead
15 Debut broadcast of Terminus episode one on BBC1 Terminus
16 Debut broadcast of Terminus episode two on BBC1 Terminus
21 Deborah Watling is contracted for The Five Doctors; she drops out several days later due to other commitments 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 BBC1 Terminus
23 Debut broadcast of Terminus episode four on BBC1 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 BBC1 Enlightenment
2 Debut broadcast of Enlightenment episode two on BBC1 Enlightenment
5 Location filming 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 Location filming for The Five Doctors takes place in Ffestiniog, Wales The Five Doctors
8 Debut broadcast of Enlightenment episode three on BBC1 Enlightenment
8 Location filming for The Five Doctors takes place in Ffestiniog, Wales The Five Doctors
9 Debut broadcast of Enlightenment episode four on BBC1 Enlightenment
9 Location filming for The Five Doctors takes place in Ffestiniog, Wales The Five Doctors
10 Location filming for The Five Doctors takes place in Ffestiniog, Wales The Five Doctors
11 Location filming for The Five Doctors takes place in Ffestiniog, Wales and Llanfrothen, Wales The Five Doctors
13 Location filming for The Five Doctors takes place in Ffestiniog, Wales The Five Doctors
14 Location filming for The Five Doctors takes place in Ffestiniog, Wales The Five Doctors
15 Debut broadcast of The King's Demons episode one on BBC1 The King's Demons
15 Location filming for The Five Doctors takes place in Llanbedr, Wales The Five Doctors
16 Debut broadcast of The King's Demons episode two on BBC1 The King's Demons
17 Location filming for The Five Doctors takes place in Denham Green, Buckinghamshire and Uxbridge, Middlesex The Five Doctors
18 Filming for The Five Doctors takes place at the Ealing Television Film Studios The Five Doctors
21 Bruno Langley (Adam Mitchell) is born Adam Mitchell
23 US President Ronald Reagan proposes the Strategic Defense Initiative -- the missle-intercepting technology subsequently dubbed “Star Wars”
29 Peter Grimwade is commissioned to provide a storyline for Planet Of Fire Planet Of Fire
29 Recording for The Five Doctors takes place in BBC Television Centre Studio 6 The Five Doctors
30 Recording for The Five Doctors takes place in BBC Television Centre Studio 6 The Five Doctors
31 Recording for The Five Doctors takes place in BBC Television Centre Studio 6 The Five Doctors

April
20 Peter Grimwade is commissioned to write Planet Of Fire Planet Of Fire

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 Reggie Yates (Leo Jones) is born Leo Jones
late
May
With Peter Davison, Janet Fielding and Mark Strickson all indicating their intent 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
14 Scheduled filming at the Ealing Television Film Studios for Warriors Of The Deep beginning this day is cancelled when the crew is needed for coverage of the General Election Warriors Of The Deep
23 Recording for Warriors Of The Deep takes place in BBC Television Centre Studio 6; 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 in BBC Television Centre Studio 6 Warriors Of The Deep
28 Location filming for Warriors Of The Deep takes place in Marchwood, Hampshire Warriors Of The Deep
29 Filming for Warriors Of The Deep takes place at Shepperton Studios Warriors Of The Deep
30 Gugulethu Mbatha (aka Gugu Mbatha-Raw, who played Tish Jones) is born Tish Jones
30 Filming for Warriors Of The Deep takes place at Shepperton Studios Warriors Of The Deep

July
4 Filming for Warriors Of The Deep takes place at the BBC Visual Effects Workshop Warriors Of The Deep
5 Nicola Bryant is introduced to the press as new companion Peri Brown Peri Brown
5 Filming for Warriors Of The Deep takes place at the BBC Visual Effects Workshop Warriors Of The Deep
6 Filming for Warriors Of The Deep takes place at the BBC Visual Effects Workshop Warriors Of The Deep
7 Filming for Warriors Of The Deep takes place at the BBC Visual Effects Workshop 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 in BBC Television Centre Studio 6 Warriors Of The Deep
14 Recording for Warriors Of The Deep takes place in BBC Television Centre Studio 6 Warriors Of The Deep
15 Recording for Warriors Of The Deep takes place in BBC Television Centre Studio 6 Warriors Of The Deep
19 Anthony Steven delivers a storyline for The Twin Dilemma The Twin Dilemma
19 Location filming for The Awakening takes place in Tarrant Monkton, Dorset and Shapwick, Dorset The Awakening
20 Location filming for The Awakening takes place in Shapwick, Dorset The Awakening
21 Location filming for The Awakening takes place in Martin, Hampshire The Awakening
22 Location filming 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 but 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 in BBC Television Centre Studio 6 The Awakening
5 Recording for The Awakening takes place in BBC Television Centre Studio 6 The Awakening
6 Recording for The Awakening takes place in BBC Television Centre Studio 6 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
15 Christopher Bailey is commissioned to write “The Children Of Seth”, apparently a revised version of “Manpower” The Sixth Doctor
19 The BBC announces that Colin Baker will play the Sixth Doctor The Sixth Doctor
24 Anthony Steven is commissioned to write the final three episodes of The Twin Dilemma; subsequently, however, Steven would fall ill forcing Eric Saward to carry out substantial rewrites The Twin Dilemma
24 Recording for Frontios takes place in BBC Television Centre Studio 6 Frontios
25 Recording for Frontios takes place in BBC Television Centre Studio 6 Frontios
26 Recording for Frontios takes place in BBC Television Centre Studio 6 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 in BBC Television Centre Studio 6 Frontios
8 Recording for Frontios takes place in BBC Television Centre Studio 6 Frontios
9 Recording for Frontios takes place in BBC Television Centre Studio 6 Frontios
11 Location filming for Resurrection Of The Daleks takes place in London Resurrection Of The Daleks
12 Location filming for Resurrection Of The Daleks takes place in London Resurrection Of The Daleks
21 Recording for Resurrection Of The Daleks takes place in BBC Television Centre Studio 8 Resurrection Of The Daleks
22 Recording for Resurrection Of The Daleks takes place in BBC Television Centre Studio 8 Resurrection Of The Daleks
23 Recording for Resurrection Of The Daleks takes place in BBC Television Centre Studio 8 Resurrection Of The Daleks
30 Colin Baker is contracted for the final five episodes of Season Twenty-One, beginning with the final 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 in BBC Television Centre Studio 6 Resurrection Of The Daleks
6 Recording for Resurrection Of The Daleks takes place in BBC Television Centre Studio 6 Resurrection Of The Daleks
7 Recording for Resurrection Of The Daleks takes place in BBC Television Centre Studio 6; Janet Fielding leaves Doctor Who Resurrection Of The Daleks
14 Location filming for Planet Of Fire takes place at Playa Papagayo, Lanzarote, Spain; Nicola Bryant joins the regular Doctor Who cast Planet Of Fire
15 Location filming for Planet Of Fire takes place at Mirador del Rio, Lanzarote, Spain and Orzola, Lanzarote, Spain Planet Of Fire
16 Location filming for Planet Of Fire takes place at the Montañas del Fuego, Lanzarote, Spain Planet Of Fire
17 Location filming for Planet Of Fire takes place at the Montañas del Fuego, Lanzarote, Spain Planet Of Fire
18 Location filming for Planet Of Fire takes place at the Montañas del Fuego, Lanzarote, Spain Planet Of Fire
26 Recording for Planet Of Fire takes place in BBC Television Centre Studio 1 Planet Of Fire
27 Recording for Planet Of Fire takes place in BBC Television Centre Studio 1 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 in BBC Television Centre Studio 6 Planet Of Fire
10 Recording for Planet Of Fire takes place in BBC Television Centre Studio 6 Planet Of Fire
11 Recording for Planet Of Fire takes place in BBC Television Centre Studio 1; Mark Strickson leaves Doctor Who Planet Of Fire
15 Location filming for The Caves Of Androzani takes place in Stokeford Heath, Dorset The Caves Of Androzani
16 Location filming for The Caves Of Androzani takes place in Stokeford Heath, Dorset The Caves Of Androzani
17 Location filming for The Caves Of Androzani takes place in Stokeford Heath, Dorset The Caves Of Androzani
23 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 The Five Doctors
23 Glen McCoy is commissioned to write the second episode of Timelash Timelash
25 The Five Doctors is broadcast on BBC1 for the first time The Five Doctors
28 Philip Martin is commissioned to revise the four 25-minute episodes of “Domain” as two 45-minute episodes, which will become Vengeance On Varos 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 Planned studio recording for The Caves Of Androzani is postponed due to industrial action The Caves Of Androzani
2 Planned studio recording for The Caves Of Androzani is postponed due to industrial action The Caves Of Androzani
15 Recording for The Caves Of Androzani takes place in BBC Television Centre Studio 6 The Caves Of Androzani
16 Recording for The Caves Of Androzani takes place in BBC Television Centre Studio 6 The Caves Of Androzani
17 Recording for The Caves Of Androzani takes place in BBC Television Centre Studio 6 The Caves Of Androzani
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