| Series |  |
 |
|
|
|
|
|
|
| The Original Series | 4 | 1 | 1 | 0 | 1 | 0 | 1 | 2.25 |
| Total | 4 | 1 | 1 | 0 | 1 | 0 | 1 | 2.25 |
| Title | Season episode | Airdate | Stardate | Year | Rating | |
| The Paradise Syndrome | 3 x 03 | 59 | 4 Oct 1968 | 4842.6 | 2268 |  |
| Wink of an Eye | 3 x 13 | 69 | 29 Nov 1968 | 5710.5 | 2268 |  |
| Let that be Your Last Battlefield | 3 x 15 | 71 | 10 Jan 1969 | 5730.2 | 2268 |  |
| The Mark of Gideon | 3 x 17 | 73 | 17 Jan 1969 | 5423.4 | 2268 |  |
| © Graham & Ian Kennedy | Page views : 13,435 | Last updated : 20 Jan 2023 |