1976 (production)

April

 * April - Location filming for The Masque of Mandragora took place. (REF: Doctor Who The Handbook: The Fourth Doctor)
 * 27 April - The BBC radio story Exploration Earth was recorded at Studio 1, BBC Broadcasting House. (The Collection: Season 14)

May

 * 3-7 May - Studio filming for The Masque of Mandragora took place at BBC Television Centre studio 3. (REF: Doctor Who The Handbook: The Fourth Doctor)

June

 * 8 June - Studio filming for The Masque of Mandragora took place at BBC Television Centre studio 3. (REF: Doctor Who The Handbook: The Fourth Doctor)
 * 15 June - Location filming for The Hand of Fear took place. (REF: Doctor Who The Handbook: The Fourth Doctor)

July

 * 5-7 and 19-20 July - Studio filming for The Hand of Fear took place at BBC Television Centre studio 8. (REF: Doctor Who The Handbook: The Fourth Doctor)
 * 26-30 July - Location filming for The Deadly Assassin took place. (Doctor Who The Handbook: The Fourth Doctor)

August

 * 15-17 August - Studio filming for The Deadly Assassin took place at BBC Television Centre studio 3. (Doctor Who The Handbook: The Fourth Doctor)

September

 * 1-2 September - Studio filming for The Deadly Assassin took place at BBC Television Centre studio 8. (Doctor Who The Handbook: The Fourth Doctor)
 * 20 September - Pre-filming for The Face of Evil took place at Ealing Studios. (REF: Doctor Who The Handbook: The Fourth Doctor)

October

 * 11-12 and 25-26 October - Studio filming for The Face of Evil took place at BBC Television Centre studio 3. (REF: Doctor Who The Handbook: The Fourth Doctor)

November

 * November - Graham Williams is asked to take over as producer on Doctor Who, as a successor to Philip Hinchcliffe.

December

 * 13 December - Location filming for The Talons of Weng-Chiang took place. (REF: Doctor Who The Handbook: The Fourth Doctor)