1968 (releases)


 * 6 January - The Enemy of the World Episode 3 was first broadcast.
 * 13 January - The Enemy of the World Episode 4 was first broadcast.
 * 20 January - The Enemy of the World Episode 5 was first broadcast.
 * 27 January - The Enemy of the World Episode 6 was first broadcast. The episode was followed by a specially shot scene of the Second Doctor on the London Underground set addressing the viewers about the events of the next story, The Web of Fear.
 * 3 February - The Web of Fear Episode 1 was first broadcast.
 * 10 February - The Web of Fear Episode 2 was first broadcast.
 * 17 February - The Web of Fear Episode 3 was first broadcast.
 * 24 February - The Web of Fear Episode 4 was first broadcast.
 * 2 March - The Web of Fear Episode 5 was first broadcast.
 * 9 March - The Web of Fear Episode 6 was first broadcast.
 * 16 March - Fury from the Deep Episode 1 was first broadcast.
 * 23 March - Fury from the Deep Episode 2 was first broadcast.
 * 30 March - Fury from the Deep Episode 3 was first broadcast.
 * 4 April - was assassinated.
 * 6 April - Fury from the Deep Episode 4 was first broadcast.
 * 13 April - Fury from the Deep Episode 5 was first broadcast.
 * 20 April - Fury from the Deep Episode 6 was first broadcast.
 * 27 April - The Wheel in Space Episode 1 was first broadcast.
 * 4 May - The Wheel in Space Episode 2 was first broadcast
 * 11 May - The Wheel in Space Episode 3 was first broadcast.
 * 18 May - The Wheel in Space Episode 4 was first broadcast.
 * 25 May - The Wheel in Space Episode 5 was first broadcast.
 * 1 June - The Wheel in Space Episode 6 was first broadcast, concluding the fifth season of Doctor Who. The episode ended with the Second Doctor showing Zoe a recording of a recent adventure, leading into a rebroadcast of The Evil of the Daleks which filled the gap before the start of the next season.
 * 6 June - was assassinated.
 * 10 August - The Dominators Episode 1 was first broadcast, launching season 6.
 * 17 August - The Dominators Episode 2 was first broadcast.
 * 24 August - The Dominators Episode 3 was first broadcast.
 * 31 August - The Dominators Episode 4 was first broadcast.
 * The fourth Doctor Who Annual was published.
 * 7 September - The Dominators Episode 5 was first broadcast.
 * 14 September - The Mind Robber Episode 1 was first broadcast.
 * 21 September - The Mind Robber Episode 2 was first broadcast.
 * 28 September - The Mind Robber Episode 3 was first broadcast.
 * Frazer Hines released the pop single "Who's Dr. Who?" on Major Minor Records.
 * 5 October - The Mind Robber Episode 4 was first broadcast.
 * 12 October - The Mind Robber Episode 5 was first broadcast.
 * 2 November - The Invasion Episode 1 was first broadcast.
 * 9 November - The Invasion Episode 2 was first broadcast.
 * 16 November - The Invasion Episode 3 was first broadcast.
 * 23 November - The Invasion Episode 4 was first broadcast.
 * 30 November - The Invasion Episode 5 was first broadcast.
 * 7 December - The Invasion Episode 6 was first broadcast.
 * 14 December - The Invasion Episode 7 was first broadcast.
 * 21 December - The Invasion Episode 8 was first broadcast.
 * 28 December - The Krotons Episode 1 was first broadcast.