20 October (releases)


 * 1973 - Part two of TV Comic story Nova was first published.
 * 1979 - Part four of City of Death was first broadcast on BBC1.
 * 1980 - Anthology The Adventures of K9 was first published by Sparrow Books.
 * 1994 - St Anthony's Fire and Venusian Lullaby were first published by Virgin Books.
 * 2003 - Invasion of the Dinosaurs was released on VHS.
 * 2007 - The Target Book was first published by Telos Publishing.
 * 2008 - Part one of Secrets of the Stars was first broadcast on CBBC.
 * 2010 - DWDVDF 47 was first published by GE Fabbri Ltd.
 * 2011 - Doctor Who Adventures comic story The Kchrusivour Gambit was first published.
 * 2013 - The Doctors Revisited - The Fourth Doctor was first broadcast on Watch in the United Kingdom, followed by a rebroadcast of Fourth Doctor story Pyramids of Mars.