4 April (production)


 * 1972 - Location filming for The Time Monster took place. (REF: Doctor Who The Handbook: The Third Doctor)
 * 1980 - Studio filming for The Leisure Hive took place at BBC Television Centre studio 1. (REF: Doctor Who The Handbook: The Fourth Doctor)
 * 1987 - Location filming for Time and the Rani took place. (Doctor Who The Handbook: The Seventh Doctor)
 * 1988 - Filming for Remembrance of the Daleks caused a brief panic when a large explosion set off on a London side street during filming of a Dalek battle scene was mistaken as a possible IRA bombing.
 * 1989 - Location filming for The Curse of Fenric took place. (Doctor Who The Handbook: The Seventh Doctor)
 * 2005 - The BBC retracted part of its 30 March announcement of the departure of Christopher Eccleston, indicating it released the information with incorrect attribution and without the actor's consent.
 * 2016 - Filming began on the Class story For Tonight We Might Die.
 * 2017 - The Big Finish audio story The Blood Furnace was recorded at the Moat Studios.
 * 2018 - The Big Finish audio story Warlock's Cross was recorded at the Moat Studios.
 * 2019 - The Big Finish audio story The Wizard of Time / The Friendly Invasion was recorded at Audio Sorcery.
 * 2023 - Big Finish's audio anthology Audacity was recorded at the Soundhouse.
 * 2023 - The Big Finish audio story The Box of Terrors was recorded at Ladbroke Audio.