| Series |  |
 |
|
|
|
|
|
|
| The Original Series | 4 | 0 | 1 | 1 | 0 | 0 | 2 | 3.25 |
| Total | 4 | 0 | 1 | 1 | 0 | 0 | 2 | 3.25 |
| Title | Season episode | Airdate | Stardate | Year | Rating | |
| The Devil in the Dark | 1 x 27 | 27 | 9 Mar 1967 | 3196.1 | 2267 |  |
| Errand of Mercy | 1 x 28 | 28 | 23 Mar 1967 | 3198.4 | 2267 | |
| Metamorphosis | 2 x 02 | 32 | 10 Nov 1967 | 3219.8 | 2267 |  |
| Bread and Circuses | 2 x 14 | 44 | 15 Mar 1968 | 4040.7 | 2267 |  |
| © Graham & Ian Kennedy | Page views : 15,538 | Last updated : 27 Jul 2022 |