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On 12 October, the following important behind-the-scenes events were known to have occurred:
- 1969 - Location filming for Spearhead from Space took place. (REF: Doctor Who The Handbook: The Third Doctor)
- 1970 - R/T voices for The Mind of Evil was recorded. (REF: Doctor Who The Handbook: The Third Doctor)
- 1976 - Studio filming for The Face of Evil took place at BBC Television Centre studio 3. (REF: Doctor Who The Handbook: The Fourth Doctor)
- 2007 - The Big Finish audio story Masters of War was recorded at the Moat Studios.
- 2009 - The Big Finish audio story City of Spires was recorded at the Moat Studios.
- 2011 - The Big Finish audio story The Time Museum was recorded at the Moat Studios.
- 2015 - The Big Finish audio story The Ravelli Conspiracy was recorded at the Moat Studios.
- 2016 - The Big Finish audio story The Crash of the UK-201 was recorded at the Moat Studios.
- 2016 - The read-through for Oxygen took place.
- 2017 - Big Finish's audio anthology The Tenth Doctor Chronicles was recorded.
- 2017 - Big Finish's audio anthology The Comic Strip Adaptations: Volume One was recorded at Audio Sorcery.
- 2018 - Big Finish's audio anthology The Third Doctor Adventures: Volume Five was recorded at WiseBuddah.
- 2020 - Big Finish's Torchwood audio story Coffee was recorded remotely.
- 2021 - Big Finish's audio anthology The Second Doctor: Volume Three was recorded remotely.
- 2021 - Big Finish announced the audio anthology Charlotte Pollard: The Further Adventuress.