1968 (releases)


 * 6 January - The Enemy of the World Episode 3 debuted on BBC1.
 * 13 January - The Enemy of the World Episode 4 debuted on BBC1.
 * 20 January - The Enemy of the World Episode 5 debuted on BBC1.
 * 27 January - The Enemy of the World Episode 6 debuted on BBC1. The episode was followed by a specially shot scene of the Second Doctor on the London Underground tunnel/platform set addressing the viewers about the events of the next story, The Web of Fear.
 * 3 February - The Web of Fear Episode 1 debuted on BBC1.
 * 10 February - The Web of Fear Episode 2 debuted on BBC1.
 * 17 February - The Web of Fear Episode 3 debuted on BBC1.
 * 24 February - The Web of Fear Episode 4 debuted on BBC1.
 * 2 March - The Web of Fear Episode 5 debuted on BBC1.
 * 9 March - The Web of Fear Episode 6 debuted on BBC1.
 * 16 March - Fury from the Deep Episode 1 debuted on BBC1.
 * 23 March - Fury from the Deep Episode 2 debuted on BBC1.
 * 30 March - Fury from the Deep Episode 3 debuted on BBC1.
 * 6 April - Fury from the Deep Episode 4 debuted on BBC1.
 * 13 April - Fury from the Deep Episode 5 debuted on BBC1.
 * 20 April - Fury from the Deep Episode 6 debuted on BBC1.
 * 27 April - The Wheel in Space Episode 1 debuted on BBC1.
 * 4 May - The Wheel in Space Episode 2 debuted on BBC1.
 * 11 May - The Wheel in Space Episode 3 debuted on BBC1.
 * 18 May - The Wheel in Space Episode 4 debuted on BBC1.
 * 25 May - The Wheel in Space Episode 5 debuted on BBC1.
 * 1 June - The Wheel in Space Episode 6 debuted on BBC1.
 * 10 August - The Dominators Episode 1 debuted on BBC1, launching season 6.
 * The Dominators was the first Doctor Who story to be written under a pseudonym: Norman Ashby (Mervyn Haisman and Henry Lincoln).


 * 17 August - The Dominators Episode 2 debuted on BBC1.
 * 24 August - The Dominators Episode 3 debuted on BBC1.
 * 31 August - The Dominators Episode 4 debuted on BBC1.
 * The fourth Doctor Who Annual was published.
 * 7 September - The Dominators Episode 5 debuted on BBC1.
 * 14 September - The Mind Robber Episode 1 debuted on BBC1. This was the first and only Doctor Who episode to have no on-screen writer's credit.
 * 21 September - The Mind Robber Episode 2 debuted on BBC1.
 * 28 September - The Mind Robber Episode 3 debuted on BBC1.
 * Frazer Hines released the pop single "Who's Dr. Who?" on Major Minor Records.
 * 5 October - The Mind Robber Episode 4 debuted on BBC1.
 * 12 October - The Mind Robber Episode 5 debuted on BBC1.
 * 2 November - The Invasion Episode One debuted on BBC1.
 * 9 November - The Invasion Episode Two debuted on BBC1.
 * 16 November - The Invasion Episode Three debuted on BBC1.
 * 23 November - The Invasion Episode Four debuted on BBC1.
 * 30 November - The Invasion Episode Five debuted on BBC1.
 * 7 December - The Invasion Episode Six debuted on BBC1.
 * 14 December - The Invasion Episode Seven debuted on BBC1.
 * 21 December - The Invasion Episode Eight debuted on BBC1.
 * 28 December - The Krotons Episode One debuted on BBC1.