The Doctor Who Production Diary: 1984

January
5 Debut broadcast of Warriors Of The Deep episode one on BBC1 Warriors Of The Deep
6 Debut broadcast of Warriors Of The Deep episode two on BBC1 Warriors Of The Deep
10 A photocall is held to introduce Colin Baker in costume as the Sixth Doctor The Sixth Doctor
10 Paula Woolsey is commissioned to write the first episode of Attack Of The Cybermen; the script is likely written with contributions from Eric Saward and Ian Levine, and is credited to the pseudonym “Paula Moore” Attack Of The Cybermen
10 Andrew Smith is commissioned to provide a storyline for “The First Sontarans” The Sixth Doctor
11 Recording for The Caves Of Androzani takes place in BBC Television Centre Studio 6 The Caves Of Androzani
12 Recording for The Caves Of Androzani takes place in BBC Television Centre Studio 6; Colin Baker joins the regular Doctor Who cast, while Peter Davison leaves the programme The Caves Of Androzani
12 Debut broadcast of Warriors Of The Deep episode three on BBC1 Warriors Of The Deep
13 Debut broadcast of Warriors Of The Deep episode four on BBC1 Warriors Of The Deep
19 Debut broadcast of The Awakening episode one on BBC1 The Awakening
19 Ingrid Pitt and Tony Rudlin are commissioned to write the first episode of “The Macro Men” The Sixth Doctor
20 Debut broadcast of The Awakening episode two on BBC1 The Awakening
24 Recording for The Twin Dilemma takes place in BBC Television Centre Studio 8 The Twin Dilemma
25 Recording for The Twin Dilemma takes place in BBC Television Centre Studio 8 The Twin Dilemma
26 Recording for The Twin Dilemma takes place in BBC Television Centre Studio 8 The Twin Dilemma
26 Debut broadcast of Frontios episode one on BBC1 Frontios
27 Debut broadcast of Frontios episode two on BBC1 Frontios

February
2 Debut broadcast of Frontios episode three on BBC1 Frontios
2 Ian Marter is commissioned to provide a storyline for “Volvok” The Sixth Doctor
3 Debut broadcast of Frontios episode four on BBC1 Frontios
7 Location filming for The Twin Dilemma takes place in Rickmansworth, Hertfordshire The Twin Dilemma
8 Debut broadcast of Resurrection Of The Daleks episode one on BBC1; because of scheduling clashes with the Winter Olympics, the original parts one and two are reedited into a single 47-minute installment Resurrection Of The Daleks
8 Location filming for The Twin Dilemma takes place in Wapseys Wood, Buckinghamshire The Twin Dilemma
9 Eric Saward outlines a number of additional revisions Philip Martin will need to carry out on Vengeance On Varos; Martin refuses unless he is paid an additional fee Vengeance On Varos
13 Robert Holmes is commissioned to write the first episode of The Two Doctors, uniting the Sixth and Second Doctors and taking advantage of location filming in New Orleans, Louisiana The Two Doctors
14 Recording for The Twin Dilemma takes place in BBC Television Centre Studio 3 The Twin Dilemma
15 Debut broadcast of Resurrection Of The Daleks episode two on BBC1; because of scheduling clashes with the Winter Olympics, the original parts three and four are reedited into a single 47-minute installment Resurrection Of The Daleks
15 Although it is originally thought that the BBC's American distributor, Lionheart, can fund location filming in New Orleans, Louisiana for The Two Doctors, it becomes clear that this will be insufficient and John Nathan-Turner unsuccessfully writes to the BBC's commercial arm, BBC Enterprises, in the hope of making up the shortfall The Two Doctors
15 Recording for The Twin Dilemma takes place in BBC Television Centre Studio 3 The Twin Dilemma
mid
Feb
Andrew Smith's “The First Sontarans” is abandoned due to the inclusion of the Sontarans in The Two Doctors The Sixth Doctor
16 Recording for The Twin Dilemma takes place in BBC Television Centre Studio 3 The Twin Dilemma
21 Paula Woolsey is commissioned to write the second episode of Attack Of The Cybermen Attack Of The Cybermen
23 Debut broadcast of Planet Of Fire episode one on BBC1 Planet Of Fire
24 Debut broadcast of Planet Of Fire episode two on BBC1 Planet Of Fire
29 Patrick Troughton is contracted for The Two Doctors The Second Doctor
29 Frazer Hines is contracted for The Two Doctors Jamie
McCrimmon
late
Feb
The BBC agrees to Philip Martin's request for an additional free to complete Vengeance On Varos Vengeance On Varos

March
1 Debut broadcast of Planet Of Fire episode three on BBC1 Planet Of Fire
2 Debut broadcast of Planet Of Fire episode four on BBC1 Planet Of Fire
8 Debut broadcast of The Caves Of Androzani episode one on BBC1 The Caves Of Androzani
9 Debut broadcast of The Caves Of Androzani episode two on BBC1 The Caves Of Androzani
9 Eric Saward indicates that he cannot assess Philip Martin's “Doomwraiths”, “Space Sargasso” and “Valley Of Shadows” without more development of the ideas The Sixth Doctor
13 Robert Holmes is commissioned to write the final two episodes of The Two Doctors The Two Doctors
15 Debut broadcast of The Caves Of Androzani episode three on BBC1 The Caves Of Androzani
16 Debut broadcast of The Caves Of Androzani episode four on BBC1 The Caves Of Androzani
22 Debut broadcast of The Twin Dilemma episode one on BBC1 The Twin Dilemma
23 Debut broadcast of The Twin Dilemma episode two on BBC1 The Twin Dilemma
27 Eric Saward is commissioned to provide a storyline for Revelation Of The Daleks Revelation Of The Daleks
29 Debut broadcast of The Twin Dilemma episode three on BBC1 The Twin Dilemma
30 Debut broadcast of The Twin Dilemma episode four on BBC1 The Twin Dilemma

April
22 Lady Christina de Souza (Michelle Ryan) is born Lady 
Christina de Souza
23 Researchers identify the human immunodeficiency virus (HIV) which leads to AIDS

May
early
May
Robert Holmes reluctantly agrees to rewrite The Two Doctors when funding issues force location filming to shift from New Orleans, Louisiana to Seville, Spain The Two Doctors
8 The Soviet Union announces that it will boycott the Summer Games being held in Los Angeles, California; they would be joined by thirteen other nations
29 Location filming for Attack Of The Cybermen takes place in London Attack Of The Cybermen
30 Location filming for Attack Of The Cybermen takes place in Wapseys Wood, Buckinghamshire Attack Of The Cybermen
31 Location filming for Attack Of The Cybermen takes place in Wapseys Wood, Buckinghamshire Attack Of The Cybermen

June
1 Location filming for Attack Of The Cybermen takes place in London Attack Of The Cybermen
6 Anthony Ainley is contracted for The Mark Of The Rani The
Master
7 Filming for Attack Of The Cybermen takes place at the BBC Model Stage Attack Of The Cybermen
8 Filming for Attack Of The Cybermen takes place at the BBC Model Stage Attack Of The Cybermen
19 Christopher H Bidmead is commissioned to provide a storyline which will become “In The Hollows Of Time” The Sixth Doctor
21 Recording for Attack Of The Cybermen takes place in BBC Television Centre Studio 6 Attack Of The Cybermen
22 Recording for Attack Of The Cybermen takes place in BBC Television Centre Studio 6 Attack Of The Cybermen
25 Nicola Bryant's contract option for the final five stories of Season Twenty-Two is taken up, starting with Vengeance On Varos Peri Brown

July
6 Recording for Attack Of The Cybermen takes place in BBC Television Centre Studio 6 Attack Of The Cybermen
7 Recording for Attack Of The Cybermen takes place in BBC Television Centre Studio 6 Attack Of The Cybermen
8 Recording for Attack Of The Cybermen takes place in BBC Television Centre Studio 6 Attack Of The Cybermen
13 Eric Saward is commissioned to write Revelation Of The Daleks Revelation Of The Daleks
18 Recording for Vengeance On Varos takes place in BBC Television Centre Studio 6 Vengeance On Varos
19 Recording for Vengeance On Varos takes place in BBC Television Centre Studio 6 Vengeance On Varos
20 Recording for Vengeance On Varos takes place in BBC Television Centre Studio 6 Vengeance On Varos
31 Recording for Vengeance On Varos takes place in BBC Television Centre Studio 6 Vengeance On Varos

August
1 Recording for Vengeance On Varos takes place in BBC Television Centre Studio 6 Vengeance On Varos
2 Recording for Vengeance On Varos takes place in BBC Television Centre Studio 6 Vengeance On Varos
9 Location filming for The Two Doctors takes place in Gerena, Spain The Two Doctors
10 Location filming for The Two Doctors takes place in Gerena, Spain The Two Doctors
11 Location filming for The Two Doctors takes place in Gerena, Spain The Two Doctors
12 Location filming for The Two Doctors takes place in Gerena, Spain The Two Doctors
13 Location filming for The Two Doctors takes place in Seville, Spain The Two Doctors
13 Peter Grimwade is commissioned to provide a storyline for “League Of The Tandreds” The Sixth Doctor
14 Location filming for The Two Doctors takes place in Seville, Spain The Two Doctors
16 Location filming for The Two Doctors takes place in Gerena, Spain The Two Doctors
29 Philip Martin is commissioned to write “Mission To Magnus” The Sixth Doctor
30 Recording for The Two Doctors takes place in BBC Television Centre Studio 1 The Two Doctors
31 Recording for The Two Doctors takes place in BBC Television Centre Studio 1 The Two Doctors

September
4 In a federal election, the Progressive Conservative party led by Brian Mulroney forms the largest majority in Canadian history
13 Recording for The Two Doctors takes place in BBC Television Centre Studio 6 The Two Doctors
14 Recording for The Two Doctors takes place in BBC Television Centre Studio 6 The Two Doctors
25 Graham Williams is commissioned to provide a storyline for “The Nightmare Fair” The Sixth Doctor
27 Recording for The Two Doctors takes place in BBC Television Centre Studio 6 The Two Doctors
28 Recording for The Two Doctors takes place in BBC Television Centre Studio 6 The Two Doctors

October
22 Location filming for The Mark Of The Rani takes place in Telford, Shropshire The Mark Of The Rani
23 Location filming for The Mark Of The Rani takes place in Telford, Shropshire The Mark Of The Rani
24 Location filming for The Mark Of The Rani takes place in Telford, Shropshire The Mark Of The Rani
25 Location filming for The Mark Of The Rani takes place in Telford, Shropshire The Mark Of The Rani
26 Robert Holmes is commissioned to write the first episode of “Yellow Fever And How To Cure It” The Sixth Doctor
26 Location filming for The Mark Of The Rani takes place in Telford, Shropshire The Mark Of The Rani
27 Location filming for The Mark Of The Rani takes place in Telford, Shropshire The Mark Of The Rani
29 Location filming for The Mark Of The Rani takes place in Telford, Shropshire The Mark Of The Rani
30 Location filming for The Mark Of The Rani takes place in Telford, Shropshire The Mark Of The Rani
31 Indian Prime Minister Indira Gandhi is assassinated by two of her security guards
31 Location filming for The Mark Of The Rani takes place in Telford, Shropshire The Mark Of The Rani

November
1 Location filming for The Mark Of The Rani takes place in Telford, Shropshire The Mark Of The Rani
2 Location filming for The Mark Of The Rani takes place in Telford, Shropshire The Mark Of The Rani
8 Peter Grimwade's “League Of The Tandreds” is abandoned The Sixth Doctor
12 Location filming for The Mark Of The Rani takes place in Ruislip, Middlesex The Mark Of The Rani
17 Graham Williams is commissioned to write “The Nightmare Fair” The Sixth Doctor
18 Recording for The Mark Of The Rani takes place in BBC Television Centre Studio 1 The Mark Of The Rani
19 Recording for The Mark Of The Rani takes place in BBC Television Centre Studio 1 The Mark Of The Rani
20 Recording for The Mark Of The Rani takes place in BBC Television Centre Studio 1 The Mark Of The Rani
21 Christopher H Bidmead is commissioned to write “In The Hollows Of Time” The Sixth Doctor
25 British musicians unite to record the charity single Do They Know It's Christmas? in support of Ethiopian famine relief

December
4 Recording for Timelash takes place in BBC Television Centre Studio 4 Timelash
5 Recording for Timelash takes place in BBC Television Centre Studio 4 Timelash
6 Recording for Timelash takes place in BBC Television Centre Studio 4 Timelash
19 Recording for Timelash takes place in BBC Television Centre Studio 8 Timelash
20 Recording for Timelash takes place in BBC Television Centre Studio 8 Timelash
21 Recording for Timelash takes place in BBC Television Centre Studio 8 Timelash