The Seeds of Doom
Joe Siegler(31 Jan – 6 Mar 1976) – Series 13, Story 6 (Serial 4L)
The Brain of Morbius
(3 Jan – 24 Jan 1976) – Series 13, Story 5 (Serial 4K)
The Android Invasion
(22 Nov – 13 Dec 1975) – Series 13, Story 4 (Serial 4J)
Pyramids of Mars
(25 Oct – 15 Nov 1975) – Series 13, Story 3 (Serial 4G)
Planet of Evil
(27 Sep – 18 Oct 1975) – Series 13, Story 2 (Serial 4H)
Terror of the Zygons
(30 Aug – 20 Sep 1975) – Series 13, Story 1 (Serial 4F)
Revenge of the Cybermen
(19 Apr – 10 May 1975) – Series 12, Story 5 (Serial 4D)
Genesis of the Daleks
(8 Mar – 12 Apr 1975) – Series 12, Story 4 (Serial 4E)
The Sontaran Experiment
(22 Feb – 1 Mar 1975) – Series 12, Story 3 (Serial 4B)
The Ark in Space
(25 Jan – 15 Feb 1975) – Series 12, Story 2 (Serial 4C)