On 9 September, the following important behind-the-scenes events were known to have occurred:
- 1967 - Location filming for The Abominable Snowmen concluded in Wales. (TCH 11)
- 1968 - Location filming for The Invasion continued. (TCH 13)
- 2005 - Doctor Who Magazine attended a production meeting on Tooth and Claw. (DWMSE 14)
- 2011 - Recording for The Fourth Doctor Box Set took place at Audio Sorcery.
- 2016 - Recording for Before the Fall took place at The Moat Studios.
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