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On 6 October, the following important behind-the-scenes events were known to have occurred:
- 1975 - Studio filming for The Brain of Morbius took place at BBC Television Centre studio 1. (REF: Doctor Who The Handbook: The Fourth Doctor)
- 1981 - Location filming for Black Orchid took place. (REF: Doctor Who The Handbook: The Fifth Doctor)
- 1983 - Studio filming Resurrection of the Daleks took place at BBC Television Centre studio 1. (REF: Doctor Who The Handbook: The Fifth Doctor)
- 2009 - The Matt Smith-era Doctor Who logo was unveiled on the Doctor Who website.
- 2009 - The Big Finish audio story The Suffering was recorded at the Moat Studios.
- 2011 - The Big Finish audio story The Justice of Jalxar was recorded.
- 2013 - Matt Smith recorded his final scenes as the Eleventh Doctor in The Time of the Doctor.
- 2015 - Big Finish's Gallifrey audio story Enemy Lines was recorded at the Moat Studios.
- 2016 - The Big Finish audio anthology The Fourth Doctor Adventures Series 8: Volume 2 was recorded at Audio Sorcery.
- 2020 - Big Finish announced the Time Lord Victorious story Genetics of the Daleks.