On 22 October, the following important behind-the-scenes events were known to have occurred:
- 1963 - Donald Baverstock's 18 October memo concerning production costs was considered, and it was decided to produce thirteen episodes with a budget of £2,500 each.
- 1966 - Filming began on The Power of the Daleks. Episode 1 was the first full episode starring Patrick Troughton as the Second Doctor.
- 2008 - Recording for The Cannibalists took place at The Moat Studios.
- 2012 - Recording for the second series of Counter-Measures took place at The Moat Studios.