17 August (releases)


 * 1968 - Episode two of The Dominators was first broadcast on BBC1.
 * 1968 - Part three of the TV Comic story The Jokers was first published.
 * 1974 - Part seven of the TV Comic story The Magician was first published
 * 1989 - The Ultimate Evil was first published by Target Books.
 * 1994 - DWCC 23 was first published by Marvel Comics.
 * 1995 - Zamper and Invasion of the Cat-People were first published by Virgin Books.
 * 1996 - Part two of the Radio Times comic story Descendance was first published.
 * 2006 - DWM 373 was first released by Panini Comics.
 * 2015 - The Sixth Doctor: The Last Adventure was first released by Big Finish.
 * 2017 - Toby Hadoke's Who's Round 213 was released online.
 * 2020 - 14681 UNIT Field Log was first released online.
 * 2021 - After the Daleks and The Secrets of Det-Sen were both first released by Big Finish.