On 25 September, a number of things set in or relevant to the Doctor Who universe were released or published.
- 1965 - "Air Lock" was first broadcast on BBC1.
- 1965 - The fourth and final part of the TV Comic story Lizardworld was first published.
- 1965 - Part four of the TV Century 21 comic story Plague of Death was first published.
- 1971 - Part ten of The Celluloid Midas was first published in Countdown.
- 1976 - Part four of The Masque of Mandragora was first broadcast on BBC1.
- 1976 - Part two of the TV Comic story The Mutant Strain was first published.
- 1979 - The Adventures of K9 and Other Mechanical Creatures was first published by Target Books.
- 2003 - Fallen Gods was first published by Telos Publishing.
- 2008 - The Doctor Who Adventures comic story The Alice in Wonderland Circuit was first published.
- 2008 - The Writer's Tale was first published by BBC Books.
- 2008 - Dalek Pop-up Model Kit and Space Travels was first published by Penguin Character Books.
- 2008 - Quiz Book 4 was first published by BBC Children's Books.
- 2013 - The Doctor Who Adventures comic story Eye of the Storm was first published.
- 2013 - The anthology Iris: Fifteen was first published by Obverse Books.
- 2013 - Toby Hadoke's Who's Round 33 was released online.
- 2014 - Doctor Who The Official Annual 2015 was published by BBC Children's Books, including inside the comics The Monsters of Coal Hill School and Freeze, and the short story When the Wolves Came.