27 October (releases)

1970s

 * 1973 - Part three of the TV Comic story Nova was first published.
 * 1979 - Part one of The Creature from the Pit was first broadcast on BBC1.

1990s

 * 1994 - DWM 219 was first released by Marvel Comics.

2000s

 * 2005 - Classified! A Confidential 3-D Dossier and TARDIS Manual were first published by Penguin Character Books.
 * 2005 - Quiz Book was first published by BBC Children's Books.
 * 2008 - Part two of Secrets of the Stars was first broadcast on CBBC.

2010s

 * 2011 - The Doctor Who Adventures comic story Trapped in the Pages of History was first published.
 * 2013 - The Doctors Revisited - The Tenth Doctor was first broadcast on BBC America, followed by a rebroadcast of the Tenth Doctor stories The Stolen Earth and Journey's End.
 * 2016 - The novels Joyride, The Stone House and What She Does Next Will Astound You were published by BBC Books.
 * 2018 - I Am The Master was first released by Big Finish Productions.

2020s

 * 2021 - New Recruit was first released by Big Finish.