On 27 April, a number of things set in or relevant to the Doctor Who universe were released or published.
- 1968 - Episode one of The Wheel in Space was first broadcast on BBC1.
- 1968 - Part one of the TV Comic story The Dyrons was first published.
- 1974 - Part six of The Monster of Peladon was first broadcast on BBC1.
- 1974 - Part eight of the TV Comic story Is Anyone There? was first published.
- 1994 - DWCC 19 was first published by Marvel Comics.
- 2006 - TDW 3 aired on BBC One.
- 2007 - TDW 17, including episode four of The Infinite Quest, first aired on CBBC.
- 2010 - The audio story Slipback was offered as part of a week-long give-away by The Daily Telegraph.
- 2013 - Journey to the Centre of the TARDIS was first broadcast on BBC One.