| Series |  |
 |
|
|
|
|
|
|
| The Original Series | 4 | 0 | 0 | 1 | 0 | 1 | 2 | 4.00 |
| Total | 4 | 0 | 0 | 1 | 0 | 1 | 2 | 4.00 |
| Title | Season episode | Airdate | Stardate | Year | Rating | |
| Mirror, Mirror | 2 x 10 | 40 | 6 Oct 1967 | Unknown | 2267 |  |
| By Any Other Name | 2 x 21 | 51 | 23 Feb 1968 | 4657.5 | 2268 | |
| Day of the Dove | 3 x 11 | 67 | 1 Nov 1968 | Unknown | 2268 |  |
| Requiem for Methuselah | 3 x 21 | 77 | 14 Feb 1969 | 5843.7 | 2269 |  |
| © Graham & Ian Kennedy | Page views : 16,373 | Last updated : 20 Jan 2023 |