Synopsis
Structurally, the season retread season 18's formula of including a trilogy of stories bound together by an overarching theme. In this instance, the tripartite tale involved Turlough's attempts to kill the Doctor at the behest of the Black Guardian.
Season 20 aired between 03 Jan 1983 and 16 Mar 1983, 22 episodes.
Episodes
E01
Arc of Infinity (1)
03 Jan 1983
E02
Arc of Infinity (2)
05 Jan 1983
E03
Arc of Infinity (3)
11 Jan 1983
E04
Arc of Infinity (4)
12 Jan 1983
E05
Snakedance (1)
18 Jan 1983
E06
Snakedance (2)
19 Jan 1983
E07
Snakedance (3)
25 Jan 1983
E08
Snakedance (4)
26 Jan 1983
E09
Mawdryn Undead (1)
01 Feb 1983
E10
Mawdryn Undead (2)
02 Feb 1983
E11
Mawdryn Undead (3)
08 Feb 1983
E12
Mawdryn Undead (4)
09 Feb 1983
E13
Terminus (1)
15 Feb 1983
E14
Terminus (2)
16 Feb 1983
E15
Terminus (3)
22 Feb 1983
E16
Terminus (4)
23 Feb 1983
E17
Enlightenment (1)
01 Mar 1983
E18
Enlightenment (2)
02 Mar 1983
E19
Enlightenment (3)
08 Mar 1983
E20
Enlightenment (4)
09 Mar 1983
E21
The King's Demons (1)
15 Mar 1983
E22
The King's Demons (2)
16 Mar 1983