7.26 avg 17 episodes 6.9 → 8.2 23 min avg
| # | Title | Rating | Votes |
|---|---|---|---|
| 1 | Cha-Ka | 6.9 | 164 |
| 2 | The Sleestak God | 7.4 | 127 |
| 3 | Dopey | 6.6 | 118 |
| 4 | Downstream | 6.7 | 112 |
| 5 | Tag-Team | 6.6 | 98 |
| 6 | The Stranger | 8.3 | 117 |
| 7 | Album | 7.6 | 99 |
| 8 | Skylons | 7.4 | 96 |
| 9 | The Hole | 7.6 | 93 |
| 10 | The Paku Who Came to Dinner | 6.4 | 92 |
| 11 | The Search | 7.1 | 88 |
| 12 | The Possession | 6.8 | 85 |
| 13 | Follow That Dinosaur | 7.8 | 92 |
| 14 | Stone Soup | 6.6 | 84 |
| 15 | Elsewhen | 8.1 | 100 |
| 16 | Hurricane | 7.3 | 82 |
| 17 | Circle | 8.2 | 103 |
7.15 avg 13 episodes 6.5 → 7.7 25 min avg
| # | Title | Rating | Votes |
|---|---|---|---|
| 1 | Tar Pit | 6.5 | 77 |
| 2 | The Zarn | 7.9 | 89 |
| 3 | Fair Trade | 6.7 | 71 |
| 4 | One of Our Pylons Is Missing | 7.1 | 73 |
| 5 | The Test | 6.9 | 67 |
| 6 | Gravity Storm | 7.4 | 70 |
| 7 | The Longest Day | 7.5 | 70 |
| 8 | The Pylon Express | 7.5 | 73 |
| 9 | Nice Day | 6.5 | 69 |
| 10 | Baby Sitter | 6.8 | 69 |
| 11 | The Musician | 7.1 | 70 |
| 12 | Split Personality | 7.3 | 65 |
| 13 | Blackout | 7.7 | 70 |
6.57 avg 13 episodes 6.7 → 6.6 24 min avg
| # | Title | Rating | Votes |
|---|---|---|---|
| 1 | After-Shock | 6.7 | 77 |
| 2 | Survival Kit | 6.5 | 65 |
| 3 | The Orb | 7.0 | 64 |
| 4 | Repairman | 6.8 | 69 |
| 5 | Medusa | 6.3 | 73 |
| 6 | Cornered | 6.9 | 63 |
| 7 | Flying Dutchman | 6.4 | 65 |
| 8 | Hot-Air Artist | 6.2 | 59 |
| 9 | Abominable Snowman | 5.7 | 61 |
| 10 | Timestop | 7.1 | 64 |
| 11 | Ancient Guardian | 6.8 | 57 |
| 12 | Scarab | 6.4 | 55 |
| 13 | Medicine Man | 6.6 | 64 |
