1978 (releases)


 * 7 January - Underworld Part One debuted on BBC1.
 * 14 January - Underworld Part Two debuted on BBC1.
 * 19 January - PROSE: Doctor Who and the Face of Evil was first published.
 * 21 January - Underworld Part Three debuted on BBC1.
 * 28 January - Underworld Part Four debuted on BBC1.
 * 4 February - The Invasion of Time Part One debuted on BBC1.
 * 11 February - The Invasion of Time Part Two debuted on BBC1.
 * 16 February - Doctor Who Discovers: The Conquerors was first published.
 * 18 February - The Invasion of Time Part Three debuted on BBC1.
 * 25 February - The Invasion of Time Part Four debuted on BBC1.
 * 4 March - The Invasion of Time Part Five debuted on BBC1.
 * 11 March - The Invasion of Time Part Six debuted on BBC1.
 * 30 March - PROSE: Doctor Who and the Horror of Fang Rock was first published.
 * 20 April - Doctor Who Discovers: Strange and Mysterious Creatures was first published.
 * 18 May - PROSE: Doctor Who and the Tomb of the Cybermen was first published.
 * 29 June - PROSE: Doctor Who and the Time Warrior was first published.
 * 20 July - PROSE: Doctor Who - Death to the Daleks was first published.
 * 29 August - Tom Baker and Mary Tamm were interviewed on BBC Radio 2's Pete Murray's Open House.
 * September - The Doctor Who Annual 1979 was published.
 * September - Terry Nation's Dalek Annual 1979 was published.
 * 2 September - The Ribos Operation Part One debuted on BBC1.
 * 9 September - The Ribos Operation Part Two debuted on BBC1.
 * 16 September - The Ribos Operation Part Three debuted on BBC1.
 * 23 September - The Ribos Operation Part Four debuted on BBC1.
 * 30 September - The Pirate Planet Part One debuted on BBC1.
 * 7 October - The Pirate Planet Part Two debuted on BBC1.
 * 14 October - The Pirate Planet Part Three debuted on BBC1.
 * 21 October - The Pirate Planet Part Four debuted on BBC1.
 * 28 October - The Stones of Blood Part One debuted on BBC1.
 * 4 November - The Stones of Blood Part Two debuted on BBC1.
 * 11 November - The Stones of Blood Part Three debuted on BBC1.
 * 16 November - Doctor Who and the Android Invasion was first published.
 * 18 November - The Stones of Blood Part Four debuted on BBC1.
 * 25 November - The Androids of Tara Part One debuted on BBC1.
 * 2 December - The Androids of Tara Part Two debuted on BBC1.
 * 7 December - Doctor Who and the Sontaran Experiment was first published.
 * 9 December - The Androids of Tara Part Three debuted on BBC1.
 * 16 December - The Androids of Tara Part Four debuted on BBC1.
 * 23 December - The Power of Kroll Part One debuted on BBC1.
 * 30 December - The Power of Kroll Part Two debuted on BBC1.