1970

History of the Doctor Who Universe

 * 20th March - "The Underwater Menace"


 * 20th August - Ace is born.


 * Unknown date - Charles, Prince of Wales, meets Camilla Shand (later Parker Bowles) for the first time, launching an on-again, off-again relationship that would last for years until they finally married in 2005. Camilla became known among the British populace as the "other woman" behind the breakdown of Charles' marriage to Princess Diana in the 1990s, leading Rose Tyler to later compare her to Madame de Pompadour (DW: The Girl in the Fireplace).


 * Unknown dates - The Doctor, having recently regenerated for a second time, arrives on Earth to begin his exile (per DW: The War Games). Initially amnesiac and under suspicion by UNIT and The Brigadier, the Doctor soon regains his memory earns their trust by helping thwart the first Auton invasion. Afterwards, he signs on as UNIT's scientific advisor, gains a new assistant in Liz Shaw, and also takes possession of Bessie. (DW: Spearhead from Space)

January

 * 03 - Spearhead from Space Episode 1 First Broadcast. This is the first episode to be broadcast in colour, and the first episode to star Jon Pertwee. It launches the UNIT era of the series. Beginning in 1970, the number of episodes produced in each season is reduced considerably, and the show moves from a Fall to Spring broadcast schedule to a January-June schedule.


 * 10 - Spearhead from Space Episode 2 First Broadcast


 * 17 - Spearhead from Space Episode 3 First Broadcast


 * 24 - Spearhead from Space Episode 4 First Broadcast


 * 31 - Doctor Who and the Silurians Episode 1 First Broadcast

February

 * 07 - Doctor Who and the Silurians Episode 2 First Broadcast


 * 14 - Doctor Who and the Silurians Episode 3 First Broadcast


 * 21 - Doctor Who and the Silurians Episode 4 First Broadcast


 * 28 - Doctor Who and the Silurians Episode 5 First Broadcast

March

 * 07 - Doctor Who and the Silurians Episode 6 First Broadcast


 * 14 - Doctor Who and the Silurians Episode 7 First Broadcast


 * 21 - The Ambassadors of Death Episode 1 First Broadcast


 * 28 - The Ambassadors of Death Episode 2 First Broadcast

April

 * 04 - The Ambassadors of Death Episode 2 First Broadcast


 * 11 - The Ambassadors of Death Episode 3 First Broadcast


 * 18 - The Ambassadors of Death Episode 4 First Broadcast


 * 25 - The Ambassadors of Death Episode 5 First Broadcast

May

 * 02 - The Ambassadors of Death Episode 6 First Broadcast


 * 09 - Inferno Episode 1 First Broadcast


 * 16 - Inferno Episode 2 First Broadcast


 * 23 - Inferno Episode 3 First Broadcast


 * 30 - Inferno Episode 4 First Broadcast

June

 * 06 - Inferno Episode 5 First Broadcast


 * 13 - Inferno Episode 6 First Broadcast


 * 20 - Inferno Episode 7 First Broadcast