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)

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)