| S12E01 | #382 | Robot, Part One | 28/12/1974 | | |
| S12E02 | #383 | Robot, Part Two | 04/01/1975 | | |
| S12E03 | #384 | Robot, Part Three | 11/01/1975 | | |
| S12E04 | #385 | Robot, Part Four | 18/01/1975 | | |
| S12E05 | #386 | The Ark in Space, Part One | 25/01/1975 | | |
| S12E06 | #387 | The Ark in Space, Part Two | 01/02/1975 | | |
| S12E07 | #388 | The Ark in Space, Part Three | 08/02/1975 | | |
| S12E08 | #389 | The Ark in Space, Part Four | 15/02/1975 | | |
| S12E09 | #390 | The Sontaran Experiment, Part One | 22/02/1975 | | |
| S12E10 | #391 | The Sontaran Experiment, Part Two | 01/03/1975 | | |
| S12E11 | #392 | Genesis of the Daleks, Part One | 08/03/1975 | | |
| S12E12 | #393 | Genesis of the Daleks, Part Two | 15/03/1975 | | |
| S12E13 | #394 | Genesis of the Daleks, Part Three | 22/03/1975 | | |
| S12E14 | #395 | Genesis of the Daleks, Part Four | 29/03/1975 | | |
| S12E15 | #396 | Genesis of the Daleks, Part Five | 05/04/1975 | | |
| S12E16 | #397 | Genesis of the Daleks, Part Six | 12/04/1975 | | |
| S12E17 | #398 | Revenge of the Cybermen, Part One | 19/04/1975 | | |
| S12E18 | #399 | Revenge of the Cybermen, Part Two | 26/04/1975 | | |
| S12E19 | #400 | Revenge of the Cybermen, Part Three | 03/05/1975 | | |
| S12E20 | #401 | Revenge of the Cybermen, Part Four | 10/05/1975 | | |