28 April (releases)


 * 1973 - Episode four of Planet of the Daleks was first broadcast on BBC1.
 * 1979 - Part five of TV Comic story Size Control was reprinted as a Fourth Doctor story.
 * 2007 - Evolution of the Daleks was first broadcast on BBC One. Later, ''Making Manhattan aired on BBC Three.
 * 2010 - Big Finish audio story Exploration Earth was offered as part of a week-long give-away by The Daily Telegraph.
 * 2013 - The Doctors Revisited - The Fourth Doctor was first broadcast on BBC America, followed by a rebroadcast of Fourth Doctor story Pyramids of Mars.