On 19 October, the following important behind-the-scenes events were known to have occurred:
- 1963 - Head of Serials Donald Wilson decided that Planet of Giants was too long, and shortened it to only three episodes, hoping this reduction in length would make the serial more exciting.
- 1970 - The Mega, to be written by Bill Strutton was commissioned. It was ultimately scrapped.
- 2005 - The original script for Attack of the Graske, then called Christmas Challenge, was prepared. (DWMSE 14)