On 30 December, the following important behind-the-scenes events were known to have occurred:
- 1963 - The Audience Research Report on the first episode of Doctor Who was filed with the BBC.
- 1967 - Episode five of The Enemy of the World was recorded at Lime Grove Studios D. (TCH 11)
- 2008 - Recording for The Three Companions took place at The Moat Studios.
- 2009 - Recording for The Whispering Forest took place at The Moat Studios.