8 April (releases)


 * 1967 - Episode one of The Faceless Ones was first broadcast on BBC1.
 * 1972 - Episode one of The Mutants was first broadcast on BBC1.
 * 1972 - Part six of The Planet of the Daleks was first published in TV Action & Countdown.
 * 2002 - The Ark in Space was released on Region 2 DVD.
 * 2004 - The Visitation was released Region 4 DVD.