25 May (releases)


 * 1968 - Episode five of The Wheel in Space was first broadcast on BBC1.
 * 1968 - Part five of TV Comic story The Dyrons was first published.
 * 1974 - Part four of Planet of the Spiders was first broadcast on BBC1.
 * 1974 - Part two of TV Comic story Size Control was first published.
 * 2006 - Aliens and Enemies was first published by BBC Books.
 * 2008 - Part one of Doctor Who Adventures comic story The Continuity Cap was first published.