| Series |  |
 |
|
|
|
|
|
|
| The Original Series | 4 | 0 | 2 | 1 | 1 | 0 | 0 | 1.75 |
| Total | 4 | 0 | 2 | 1 | 1 | 0 | 0 | 1.75 |
| Title | Season episode | Airdate | Stardate | Year | Rating | |
| The Tholian Web | 3 x 09 | 65 | 15 Nov 1968 | 5693.2 | 2268 |  |
| That Which Survives | 3 x 14 | 70 | 24 Jan 1969 | Unknown | 2268 |  |
| Whom Gods Destroy | 3 x 16 | 72 | 3 Jan 1969 | 5718.3 | 2268 | |
| Turnabout Intruder | 3 x 24 | 80 | 21 Mar 1969 | 5928.9 | 2269 |  |
| © Graham & Ian Kennedy | Page views : 10,844 | Last updated : 27 Jul 2022 |