1975 (releases)

January

 * 4 January - Robot Part Two debuted on BBC1.
 * 4 January - The fifth and last part of COMIC: The Wanderers was released.
 * 6 January - The stage play Doctor Who and the Daleks in Seven Keys to Doomsday gave its final performance at the Adelphiatre.
 * 11 January - Robot Part Three debuted on BBC1.
 * 11 January - The first part of COMIC: Death Flower was released.
 * 16 January - Doctor Who and the Curse of Peladon was first published by Target Books.
 * 18 January - Robot Part Four debuted on BBC1.
 * 18 January - The second part of COMIC: Death Flower was released.
 * 25 January - The Ark in Space Part One debuted on BBC1.
 * 25 January - The third part of COMIC: Death Flower was released.

February

 * 1 February - The Ark in Space Part Two debuted on BBC1.
 * 1 February - The fourth part of COMIC: Death Flower was released.
 * 8 February - The Ark in Space Part Three debuted on BBC1.
 * 8 February - The fifth part of COMIC: Death Flower was released.
 * 15 February - The Ark in Space Part Four debuted on BBC1.
 * 15 February - The sixth part of COMIC: Death Flower was released.
 * 19 February -The novelisation of The Moonbase, Doctor Who and the Cybermen was first published by Target Books.
 * 22 February - The Sontaran Experiment Part One debuted on BBC1.
 * 22 February - The seventh part of COMIC: Death Flower was released.

March

 * 1 March - The Sontaran Experiment Part Two debuted on BBC1.
 * 1 March - The eighth part of COMIC: Death Flower was released.
 * 8 March - Genesis of the Daleks Part One debuted on BBC1.
 * 8 March - The ninth part of COMIC: Death Flower was released.
 * 13 March -The novelisation of Robot, Doctor Who and the Giant Robot was first published by Target Books.
 * 15 March - Genesis of the Daleks Part Two debuted on BBC1.
 * 15 March - The tenth part of COMIC: Death Flower was released.
 * 22 March - Genesis of the Daleks Part Three debuted on BBC1.
 * 22 March - The eleventh and final part of COMIC: Death Flower was released.
 * 29 March - Genesis of the Daleks Part Four debuted on BBC1.
 * 29 March - The first part of COMIC: Return of the Daleks was released.

April

 * 5 April - Genesis of the Daleks Part Five debuted on BBC1.
 * 5 April - The second part of COMIC: Return of the Daleks was released.
 * 12 April - Genesis of the Daleks Part Six debuted on BBC1.
 * 12 April - The third part of COMIC: Return of the Daleks was released.
 * 19 April - Revenge of the Cybermen Part One debuted on BBC1.
 * 19 April - The fourth part of COMIC: Return of the Daleks was released.
 * 26 April - Revenge of the Cybermen Part Two debuted on BBC1.
 * 26 April - The fifth part of COMIC: Return of the Daleks was released.

May

 * 3 May - Revenge of the Cybermen Part Three debuted on BBC1.
 * 3 May - The sixth part of COMIC: Return of the Daleks was released.
 * 10 May - Revenge of the Cybermen Part Four debuted on BBC1.
 * 10 May - The seventh part of COMIC: Return of the Daleks was released.
 * 15 May - Doctor Who and the Terror of the Autons was first published by Target Books.
 * 17 May - The eighth and final part of COMIC: Return of the Daleks was released.
 * 24 May - The first part of COMIC: The Wreckers was released.
 * 31 May - The second part of COMIC: The Wreckers was released.

June

 * 7 June - The third part of COMIC: The Wreckers was released.
 * 14 June - The fourth part of COMIC: The Wreckers was released.
 * 21 June - The fifth part of COMIC: The Wreckers was released.
 * 28 June - The sixth part of COMIC: The Wreckers was released.

July

 * 5 July - The seventh part of COMIC: The Wreckers was released.
 * 12 July - The eighth part of COMIC: The Wreckers was released.
 * 19 July - The ninth and final part of COMIC: The Wreckers was released.
 * 26 July - The first part of COMIC: The Emperor's Spy was released.

August

 * 2 August - The second part of COMIC: The Emperor's Spy was released.
 * 9 August - The third part of COMIC: The Emperor's Spy was released.
 * 16 August - The fourth part of COMIC: The Emperor's Spy was released.
 * 21 August - Doctor Who and the Green Death was first published by Target Books.
 * 23 August - The fifth part of COMIC: The Emperor's Spy was released.
 * 25 August - The Doctor Who Disney Time special was first broadcast.
 * 30 August - Terror of the Zygons Part One debuted on BBC1.
 * 30 August - The sixth part of COMIC: The Emperor's Spy was released.

September

 * September - Doctor Who Annual 1976 was published by World Distributors.
 * September - Terry Nation's Dalek Annual 1976 was published by Souvenir Press.
 * 6 September - Terror of the Zygons Part Two debuted on BBC1.
 * 6 September - The seventh and final part of COMIC: The Emperor's Spy was released.
 * 13 September - Terror of the Zygons Part Three debuted on BBC1.
 * 13 September - The first part of COMIC: The Sinister Sea was released.
 * 20 September - Terror of the Zygons Part Four debuted on BBC1.
 * 20 September - The second part of COMIC: The Sinister Sea was released.
 * 27 September - Planet of Evil Part One debuted on BBC1.
 * 27 September - The third part of COMIC: The Sinister Sea was released.

October

 * 4 October - Planet of Evil Part Two debuted on BBC1.
 * 4 October - The fourth part of COMIC: The Sinister Sea was released.
 * 11 October - Planet of Evil Part Three debuted on BBC1.
 * 11 October - The fifth part of COMIC: The Sinister Sea was released.
 * 16 October - Doctor Who and the Planet of the Spiders was first published by Target Books.
 * 18 October - Planet of Evil Part Four debuted on BBC1.
 * 18 October - The sixth and last part of COMIC: The Sinister Sea was released.
 * 25 October - Pyramids of Mars Part One debuted on BBC1.
 * 25 October - The first part of COMIC: The Space Ghost was released.

November

 * 1 November - Pyramids of Mars Part Two debuted on BBC1.
 * 1 November - The second part of COMIC: The Space Ghost was released.
 * 8 November - Pyramids of Mars Part Three debuted on BBC1.
 * 8 November - The third part of COMIC: The Space Ghost was released.
 * 15 November - Pyramids of Mars Part Four debuted on BBC1.
 * 15 November - The fourth part of COMIC: The Space Ghost was released.
 * 20 November - Doctor Who - The Three Doctors was first published by Target Books.
 * 20 November - The Doctor Who Monster Book was first published by Target Books.
 * 22 November - The Android Invasion Part One debuted on BBC1.
 * 22 November - The fifth part of COMIC: The Space Ghost was released.
 * 29 November - The Android Invasion Part Two debuted on BBC1.
 * 29 November - The sixth and final part of COMIC: The Space Ghost was released.

December

 * 6 December - The Android Invasion Part Three debuted on BBC1.
 * 6 December - The first part of COMIC: The Dalek Revenge was released.
 * 13 December - The Android Invasion Part Four debuted on BBC1.
 * 13 December - The second part of COMIC: The Dalek Revenge was released.
 * 20 December - The third part of COMIC: The Dalek Revenge was released.
 * 27 December - The fourth part of COMIC: The Dalek Revenge was released.

Unknown dates

 * War of the Daleks was released by Denys Fisher.
 * The 1975 TV Comic Holiday, featuring the story The Magic Box, was released.
 * The 1975 TV Comic Annual, featuring the story Petrified, was released.