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On 27 October, the following important behind-the-scenes events were known to have occurred:
- 1965 - Make-up lead Sonia Markham responded to producer John Wiles' 26 October memo, and apologised profusely about the lack of continuity with Brian Cant's beard from scene to scene in "The Nightmare Begins". She pushed back, however, against Wiles' criticism of the wig Hartnell wore as the First Doctor, explaining that there is little which can be done about being able to see the wig line during close-ups.
- 1970
- Script editor Terrance Dicks wrote to writer Louis Marks about Marks' story idea for Day of the Daleks, "the addition of the 'going into the future' storyline gives it the added science fiction feeling that we need." He however explained that he had not yet been given to all-clear to commission another season, and thus could not yet commission his storyline. He finally gave the order on 22 January 1971.
- Location filming for The Mind of Evil took place. (REF: Doctor Who The Handbook: The Third Doctor)
- 1971 - Location filming for The Sea Devils took place. (REF: Doctor Who The Handbook: The Third Doctor)
- 1975 - Location filming for The Seeds of Doom took place. (REF: Doctor Who The Handbook: The Fourth Doctor)
- 1982 - Studio filming for Terminus took place at BBC Television Centre studio 8. (REF: Doctor Who The Handbook: The Fifth Doctor)
- 1984 - Location filming for The Mark of the Rani took place. (REF: Doctor Who The Handbook: The Sixth Doctor)
- 2004 - The Big Finish audio story The Game was recorded at the Moat Studios.
- 2005 - The shooting script for The Age of Steel, then titled Parallel World Part 2, was issued. (DWMSE 14)
- 2009 - The Big Finish audio story Situation Vacant was recorded at the Moat Studios.
- 2014
- The Big Finish audio stories Time Tunnel and The Other Woman were recorded at the Moat Studios.
- Big Finish confirmed the casting of Jemma Powell as Barbara Wright for the third series of The Early Adventures.
- 2015 - Big Finish's The Companion Chronicles audio anthology The Second Doctor: Volume One and Lost and Found were recorded at the Moat Studios.
- 2016 - The Big Finish audio story Forever Fallen was recorded at the Moat Studios.
- 2021 - Big Finish's audio anthologies Silver and Ice and Blood & Steel were recorded at the Soundhouse.
- 2023 - The Big Finish audio story The Hoxteth Time Capsule was recorded remotely.