Synopsis
This season saw the introduction of the Black and White Guardians as well as the companion Romana, who became only the second female Time Lord companion since Susan. This season is sometimes colloquially known as The Key to Time season after the story arc involving the Key to Time. Although not the first season to consist of linked stories (Season 8 in 1971 was the first, as all the stories that year featured the Master), it was the first to be recognised as having a series long arc. Although multi serial arcs would occur again, such a full- season experiment wouldn't be attempted again until Season 23. The arc has a number of similarities to the Season 1 story The Keys of Marinus. The storyline was originally proposed for Season 15, but it required more planning.
The Key to Time aired between 02 Sep 1978 and 24 Feb 1979, 26 episodes.
Episodes
E01
The Ribos Operation (1)
02 Sep 1978
E02
The Ribos Operation (2)
09 Sep 1978
E03
The Ribos Operation (3)
16 Sep 1978
E04
The Ribos Operation (4)
23 Sep 1978
E05
The Pirate Planet (1)
30 Sep 1978
E06
The Pirate Planet (2)
07 Oct 1978
E07
The Pirate Planet (3)
14 Oct 1978
E08
The Pirate Planet (4)
21 Oct 1978
E09
The Stones of Blood (1)
28 Oct 1978
E10
The Stones of Blood (2)
04 Nov 1978
E11
The Stones of Blood (3)
11 Nov 1978
E12
The Stones of Blood (4)
18 Nov 1978
E13
The Androids of Tara (1)
25 Nov 1978
E14
The Androids of Tara (2)
02 Dec 1978
E15
The Androids of Tara (3)
09 Dec 1978
E16
The Androids of Tara (4)
16 Dec 1978
E17
The Power of Kroll (1)
23 Dec 1978
E18
The Power of Kroll (2)
30 Dec 1978
E19
The Power of Kroll (3)
06 Jan 1979
E20
The Power of Kroll (4)
13 Jan 1979
E21
The Armageddon Factor (1)
20 Jan 1979
E22
The Armageddon Factor (2)
27 Jan 1979
E23
The Armageddon Factor (3)
03 Feb 1979
E24
The Armageddon Factor (4)
10 Feb 1979
E25
The Armageddon Factor (5)
17 Feb 1979
E26
The Armageddon Factor (6)
24 Feb 1979