On 21 August, the following important behind-the-scenes events were known to have occurred:
- 1963 - Jacqueline Hill went to BBC Television Centre for film tests of her make-up and costume as Barbara Wright.
- 1963 - Producer Verity Lambert finally got a chance to have an extended conversation with designer Peter Brachacki about the set design of An Unearthly Child. He had, up to this date, been very busy with other projects, making it impossible for Lambert to express her design views.
- 1964 - "Planet of Giants" was recorded at BBC Television Centre Studio 4. (INFO: "Planet of Giants")
- 2006 - Recording for Blood of the Daleks took place at The Moat Studios.
- 2007 - Recording for Dead London took place at The Moat Studios.
- 2018 - Recording for The Eighth Doctor: The Further Adventures of Lucie Miller: Volume One at the Moat Studios.
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