1973 (releases)

January

 * January - The Dr Who Colouring Book was published by World Distributors.
 * 6 January - The Three Doctors Episode Two debuted on BBC1.
 * 6 January - The sixth part of COMIC: Zeron Invasion was released.
 * 13 January - The Three Doctors Episode Three debuted on BBC1.
 * 13 January - The seventh and last part of COMIC: Zeron Invasion was released.
 * 20 January - The Three Doctors Episode Four debuted on BBC1.
 * 20 January - The first part of COMIC: Deadly Choice was released.
 * 27 January - Carnival of Monsters Episode One debuted on BBC1.
 * 27 January - The second part of COMIC: Deadly Choice was released.

February

 * 3 February - Carnival of Monsters Episode Two debuted on BBC1.
 * 3 February - The third and final part of COMIC: Deadly Choice was released.
 * 10 February - Carnival of Monsters Episode Three debuted on BBC1.
 * 10 February - The only part of COMIC: Who is the Stranger was released.
 * 17 February - Carnival of Monsters Episode Four debuted on BBC1.
 * 24 February - Frontier in Space Episode One debuted on BBC1.

March

 * 3 March - Frontier in Space Episode Two debuted on BBC1.
 * 3 March - The first part of COMIC: The Glen of Sleeping was released.
 * 10 March - Frontier in Space Episode Three debuted on BBC1.
 * 10 March - The second part of COMIC: The Glen of Sleeping was released.
 * 17 March - Frontier in Space Episode Four debuted on BBC1.
 * 17 March - The third part of COMIC: The Glen of Sleeping was released.
 * 24 March - Frontier in Space Episode Five debuted on BBC1.
 * 24 March - The fourth part of COMIC: The Glen of Sleeping was released.
 * 31 March - Frontier in Space Episode Six debuted on BBC1.
 * 31 March - The fifth and last part of COMIC: The Glen of Sleeping was released.

April

 * 7 April - Planet of the Daleks Episode One debuted on BBC1.
 * 7 April - The only part of COMIC: The Threat from Beneath was released.
 * 14 April - Planet of the Daleks Episode Two debuted on BBC1.
 * 21 April - Planet of the Daleks Episode Three debuted on BBC1.
 * 28 April - Planet of the Daleks Episode Four debuted on BBC1.

May

 * May - The BBC tv Special Effects Exhibition closed.
 * 2 May - Target Books reissued the 1960s novelisations Doctor Who in an Exciting Adventure with the Daleks by David Whitaker, Doctor Who and the Crusaders, also by Whitaker and Doctor Who and the Zarbi by Bill Strutton.
 * 5 May - Planet of the Daleks Episode Five debuted on BBC1.
 * 5 May - The first part of COMIC: Back to the Sun was released.
 * 12 May - Planet of the Daleks Episode Six debuted on BBC1.
 * 12 May - The second part of COMIC: Back to the Sun was released.
 * 19 May - The Green Death Episode One debuted on BBC1.
 * 19 May - The third part of COMIC: Back to the Sun was released.
 * 26 May - The Green Death Episode Two debuted on BBC1.
 * 26 May - The fourth and final part of COMIC: Back to the Sun was released.

June

 * 1 June - Doctor Who Holiday Special 1973 was released by Polystyle.
 * 2 June - The Green Death Episode Three debuted on BBC1.
 * 2 June - The only part of COMIC: The Labyrinth was released.
 * 7 June - The Dalek Appeal was first broadcast on an episode of Blue Peter.
 * 9 June - The Green Death Episode Four debuted on BBC1.
 * 16 June - The Green Death Episode Five debuted on BBC1.
 * 23 June - The Green Death Episode Six debuted on BBC1.
 * 23 June - The only part of COMIC: The Spoilers was released.

July

 * 7 July - The first part of COMIC: The Vortex was released.
 * 14 July - The second part of COMIC: The Vortex was released.
 * 21 July - The third part of COMIC: The Vortex was released.
 * 28 July - The fourth part of COMIC: The Vortex was released.

August

 * 4 August - The fifth and last part of COMIC: The Vortex was released.
 * 18 August - TV Action published its final issue, featuring The Unheard Voice, ending its Doctor Who comic strip.

September

 * September - The Dance of the Daleks was first broadcast on an episode of Vision On.
 * September - The Doctor Who Annual 1974 was published.
 * 1 September - After several years in another publication, the Doctor Who comic strip resumed in TV Comic with the first part of COMIC: Children of the Evil Eye.
 * 8 September - The second part of COMIC: Children of the Evil Eye was released.
 * 15 September - The third part of COMIC: Children of the Evil Eye was released.
 * 22 September - The fourth part of COMIC: Children of the Evil Eye was released.
 * 29 September - The fifth part of COMIC: Children of the Evil Eye was released.

October

 * 6 October - The sixth and last part of COMIC: Children of the Evil Eye was released.
 * 13 October - The first part of COMIC: Nova was released.
 * 20 October - The second part of COMIC: Nova was released.
 * 27 October - The third part of COMIC: Nova was released.

November

 * 3 November - The fourth part of COMIC: Nova was released.
 * 10 November - The fifth part of COMIC: Nova was released.
 * 17 November - The sixth part of COMIC: Nova was released.
 * 24 November - The seventh part of COMIC: Nova was released.

December

 * 1 December - The eighth part of COMIC: Nova was released.
 * 8 December - The ninth and final part of COMIC: Nova was released.
 * 15 December - The Time Warrior Part One debuted on BBC1.
 * 15 December - Doctor Who was featured on the cover of the Radio Times.
 * 15 December - The first part of COMIC: The Amateur was released.
 * 22 December - The Time Warrior Part Two debuted on BBC1.
 * 22 December - The second part of COMIC: The Amateur was released.
 * 29 December - The Time Warrior Part Three debuted on BBC1.
 * 29 December - The third part of COMIC: The Amateur was released.

Unknown dates

 * The 1973 Countdown Annual, featuring the storie Ride to Nowhere, was released.