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On 5月5日, the following important behind-the-scenes events were known to have occurred:
- 1976 - Studio filming for The Masque of Mandragora took place at BBC Television Centre studio 3. (REF: Doctor Who The Handbook: The Fourth Doctor)
- 1977 - Pre-filming for Horror of Fang Rock took place at Ealing Studios. (REF: Doctor Who The Handbook: The Fourth Doctor)
- 1978 - Location filming for The Pirate Planet took place. (REF: Doctor Who The Handbook: The Fourth Doctor)
- 1981 - Location filming for The Visitation took place at Ealing Studios. (REF: Doctor Who The Handbook: The Fifth Doctor)
- 1982 - Location filming for Arc of Infinity took place in Amsterdam. (REF: Doctor Who The Handbook: The Fifth Doctor)
- 1987 - Studio filming for Time and the Rani took place at BBC Television Centre Studio 1. (Doctor Who The Handbook: The Seventh Doctor)
- 1995 - After Fox essentially fired Robert deLaurentis on 3 February, Matthew Jacobs was chosen to write the script of the 1996 TV movie. This time, they decided to scrap all previous work and start anew. Within 14 days, Jacobs had a fresh storyline ready.
- 2013 - The third series of Big Finish's audio series Graceless was recorded at the Moat Studios.
- 2015 - Filming began on The Zygon Invasion.
- 2021 - Big Finish's audio anthology Peladon was recorded.
- 2022 - Big Finish announced the forthoming The Fifth Doctor Adventures audio anthology Conflicts of Interest.
- 2022 - Big Finish's audio anthology What Lies Inside? was recorded.