17 April (releases)


 * 1965 - "The Warlords" was first broadcast on BBC1.
 * 1971 - Episode two of Colony in Space was first broadcast on BBC1.
 * 1971 - Part four of Timebenders was first published in Countdown.
 * 2008 - Rift War! Part One was first published in TM 4.
 * 2010 - Victory of the Daleks was first broadcast on BBC One. Later, War Games aired on BBC Three.