20 March (production)


 * 1964 - "The Sea of Death" was recorded at Lime Grove Studios. (INFO: "The Sea of Death")
 * 1968 - Pre-filming for The Wheel in Space continued at Ealing Studios. (TCH 12)
 * 1971 - Studio filming for Colony in Space took place at BBC Television Centre 3. (REF: Doctor Who The Handbook: The Third Doctor)
 * 1973 - Location filming for The Green Death took place. (REF: Doctor Who The Handbook: The Third Doctor)
 * 1975 - Location filming for Terror of the Zygons took place. (REF: Doctor Who The Handbook: The Fourth Doctor)
 * 1979 - Pre-filming for The Creature from the Pit took place at Ealing Studios. (REF: Doctor Who The Handbook: The Fourth Doctor)
 * 1980 - Location filming for The Leisure Hive took place. (REF: Doctor Who The Handbook: The Fourth Doctor)
 * 2000 - The Big Finish audio story Winter for the Adept was recorded at the Moat Studios.
 * 2002 - Several years after the initial filing, the matter of the London Metropolitan Police District's 1998 opposition to the BBC's 1996 application for trademark status on the police box design was heard in court.
 * 2004 - The BBC announced that Christopher Eccleston had been cast as the Ninth Doctor in the new series. The same day, the Daily Mail ran an erroneous story indicating that Bill Nighy had been cast as the Doctor.
 * 2006 - The Big Finish audio story The Reaping was recorded at the Moat Studios.
 * 2012 - The Big Finish audio story The Burning Prince was recorded at the Moat Studios.
 * 2019 - The Big Finish audio story Dark Universe took place at the Soundhouse.
 * 2019 - Big Finish's Torchwood One: Latter Days took place at the Moat Studios.