Season 1 (1970)
7.45 avg 26 episodes 7.5 → 7.5 48 min avg
| # | Title | Rating | Votes |
|---|---|---|---|
| 1 | Identified | 7.5 | 400 |
| 2 | Exposed | 7.7 | 303 |
| 3 | The Cat with Ten Lives | 7.3 | 247 |
| 4 | Conflict | 7.4 | 230 |
| 5 | A Question of Priorities | 7.8 | 270 |
| 6 | E.S.P. | 7.2 | 212 |
| 7 | Kill Straker! | 7.4 | 204 |
| 8 | Sub-Smash | 7.6 | 228 |
| 9 | Destruction | 7.3 | 203 |
| 10 | The Square Triangle | 7.4 | 225 |
| 11 | Close Up | 7.1 | 212 |
| 12 | The Psychobombs | 7.6 | 216 |
| 13 | Survival | 7.6 | 223 |
| 14 | Mindbender | 7.9 | 222 |
| 15 | Flight Path | 7.2 | 204 |
| 16 | The Man Who Came Back | 7.4 | 193 |
| 17 | The Dalotek Affair | 7.3 | 220 |
| 18 | Timelash | 8.1 | 237 |
| 19 | Ordeal | 7.0 | 217 |
| 20 | Court Martial | 7.5 | 194 |
| 21 | Computer Affair | 7.2 | 213 |
| 22 | Confetti Check A-O.K. | 7.4 | 195 |
| 23 | The Sound of Silence | 7.1 | 198 |
| 24 | Reflections in the Water | 7.6 | 185 |
| 25 | The Responsibility Seat | 7.5 | 196 |
| 26 | The Long Sleep | 7.5 | 192 |