2004 (releases)


 * Sometime Never... was first published.
 * AUDIO: The Creed of the Kromon was first released.
 * 7 January - The Two Doctors was released to DVD in Region 4 in the Australian market.
 * 19 January - The Visitation was released to DVD in Region 2 in the UK.
 * 2 February - Scream of the Shalka, the novelisation of WC: Scream of the Shalka webcast, was published.
 * AUDIO: The Natural History of Fear was first released.
 * Blood and Hope was first published.
 * 7 February - The Curse of Fenric was released to DVD in Region 4.
 * Empire of Death was first published.
 * AUDIO: The Twilight Kingdom was first released.
 * Short Trips: Past Tense was first published.
 * The Dalek Factor was first published, ending the Telos Doctor Who novella line.
 * AUDIO: Weapon of Choice was first released, beginning the Gallifrey series.
 * 1 March - Pyramids of Mars was released to DVD in the UK.
 * 2 March - The Seeds of Death and The Three Doctors were released to DVD in Region 1.
 * 18 March - The Tunnel at the End of the Light was first published.
 * Halflife was first published.
 * AUDIO: The Axis of Insanity was first released.
 * Short Trips: Past Tense was first published.
 * AUDIO: Square One and AUDIO: The Inquiry were first released.
 * 8 April - The Visitation was released to DVD in Region 4.
 * The BBC Past Doctor Adventures novel The Eleventh Tiger was first published.
 * AUDIO: Arrangements for War was first released.
 * AUDIO: A Blind Eye was first released.
 * AUDIO: Dalek Empire III: The Exterminators was first released.
 * The Big Hunt was first published.
 * 10 May - The Green Death was released on DVD in region 2 in the UK.
 * 20 May - Short Trips: Past Tense was first published.
 * The Tomorrow Windows was first published.
 * June - AUDIO: The Harvest was first released. A new companion for the Seventh Doctor, Hex, was introduced.
 * Short Trips: Life Science was first published.
 * AUDIO: Dalek Empire III: The Healers was first released.
 * 1 June - The Curse of Fenric and The Two Doctors were released to DVD in Region 1.
 * 10 June - Pyramids of Mars was released to DVD in Region 4.
 * 17 June - The Clockwork Woman was first published.
 * 26 June - The Web of Fear episode one was repeated on BBC Four as part of a night dedicated to cult TV from the 1960s.
 * Synthespians™ was first published.
 * AUDIO: The Roof of the World was first released.
 * AUDIO: Dalek Empire III: The Survivors was first released.
 * PROSE: A Life Worth Living was first published.
 * 5 July - The Leisure Hive was released to DVD in the UK.
 * The Sleep of Reason was first published.
 * AUDIO: Medicinal Purposes was first released.
 * 5 August - The Green Death was released to DVD in Region 4.
 * 26 August - Short Trips: Repercussions was first published by Big Finish Productions.
 * The Algebra of Ice was first published.
 * AUDIO: Faith Stealer was first released.
 * AUDIO: Dalek Empire III: The Demons was first released.
 * 6 September - AUDIO: Doctor Who at the BBC Volume 2 was first released.
 * 20 September - Ghost Light was released to DVD in the UK.
 * The Deadstone Memorial was first published.
 * AUDIO: The Last was first released.
 * Short Trips: Monsters and Short Trips: 2040 were first published.
 * AUDIO: Dalek Empire III: The Warriors was first released.
 * REF: Howe's Transcendental Toybox Update No. 1 was first published
 * 7 October - The Leisure Hive was released to DVD in Region 4.
 * 17 October - This was the twenty-fifth anniversary of Doctor Who Magazine.
 * 19 October - Kitsune was first published.
 * The Indestructible Man was first published.
 * AUDIO: Caerdroia was first released.
 * AUDIO: Dalek Empire III: The Future was first released.
 * REF: The Discontinuity Guide, 2nd edition, was first published.
 * 1 November - Lost in Time, a DVD box set spotlighting incomplete stories from the William Hartnell and Patrick Troughton eras, was released in the UK.
 * 2 November - The Lost in Time DVD collection was issued in Region 1.
 * 7 November - Earthshock and Pyramids of Mars were released to DVD in Region 1.
 * AUDIO: The Next Life was first released.
 * AUDIO: Her Final Flight was first released.
 * Short Trips: A Christmas Treasury was first published.
 * AUDIO: Silver Lining, a single-episode Benny Summerfield story, and AUDIO: The Coup, a "prologue" release for the upcoming UNIT audio series, were released on an exclusive CD included with Doctor Who Magazine.
 * PROSE: A Life in Pieces was first published.
 * AUDIO: Time Heals was first released.
 * AUDIO:  Storm Mine was first released.
 * 2 December - The Severed Man was first published.
 * 2 December - The Lost in Time DVD box set was released in Region 4.
 * 30 December - The anthology Short Trips: A Christmas Treasury was first published by Big Finish.

Unknown dates

 * HOMEVID: Dæmos Rising was first released.
 * AUDIO:  The Prisoner, a twenty-minute short play, was included on the CD release Paul Darrow: The Actor Speaks.
 * NOTVALID: The Feast of the Stone was published to the BBC website.