| Ref | Name | Viewing Millions | Transmitted on |
|---|---|---|---|
First Season | |||
| A1 | The Way Back | 7.4 | 2nd Jan 1978 |
| A2 | Space Fall | 7.3 | 9th Jan 1978 |
| A3 | Cygnus Alpha | 8.5 | 16th Jan 1978 |
| A4 | Time Squad | 8.9 | 23rd Jan 1978 |
| A5 | The Web | 9.6 | 30th Jan 1978 |
| A6 | Seek Locate Destroy | 10.9 | 6th Feb 1978 |
| A7 | Mission To Destiny | 9.6 | 13th Feb 1978 |
| A8 | Duel | 10.0 | 20th Feb 1978 |
| A9 | Project Avalaon | 9.7 | 27th Feb 1978 |
| A10 | Breakdown | 8.8 | 6th Mar 1978 |
| A11 | Bounty | 9.6 | 13th Mar 1978 |
| A12 | Deliverance | 9.0 | 20th Mar 1978 |
| A13 | Orac | 10.6 | 27th Mar 1978 |
Second Season | |||
| B1 | Redemption | 7.9 | 9th Jan 1979 |
| B2 | Shadow | 7.6 | 16th Jan 1979 |
| B3 | Weapon | 6.4 | 23rd Jan 1979 |
| B4 | Horizon | 6.3 | 30th Jan 1979 |
| B5 | Pressure Point | 6.6 | 6th Feb 1979 |
| B6 | Trial | 7.5 | 13th Feb 1979 |
| B7 | Killer | 7.0 | 20th Feb 1979 |
| B8 | Hostage | 7.8 | 27th Feb 1979 |
| B9 | Countdown | 6.9 | 6th Mar 1979 |
| B10 | Voice from the Past | 7.0 | 13th Mar 1979 |
| B11 | Gambit | 6.6 | 20th Mar 1979 |
| B12 | The Keeper | 7.0 | 27th Mar 1979 |
| B13 | Star One | 8.2 | 3rd Apr 1979 |
Third Season | |||
| C1 | Aftermath | 9.5 | 7th Jan 1980 |
| C2 | Powerplay | 9.4 | 14th Jan 1980 |
| C3 | Volcano | 9.0 | 21st Jan 1980 |
| C4 | Dawn of the Gods | 8.9 | 28th Jan 1980 |
| C5 | Harvest of Kairos | 9.4 | 4th Feb 1980 |
| C6 | City at the Edge of the World | 8.8 | 11th Feb 1980 |
| C7 | Children of Auron | 10.4 | 19th Feb 1980 |
| C8 | Rumours of Death | 9.0 | 25th Feb 1980 |
| C9 | Sarcophagus | 9.9 | 3rd Mar 1980 |
| C10 | Ultraworld | 9.2 | 10th Mar 1980 |
| C11 | Moloch | 10.4 | 17th Mar 1980 |
| C12 | Death-Watch | 8.9 | 24th Mar 1980 |
| C13 | Terminal | 10.0 | 31st Mar 1980 |
Fourth Season | |||
| D1 | Rescue | 7.8 | 28th Sep 1981 |
| D2 | Power | 8.7 | 5th Oct 1981 |
| D3 | Traitor | 8.7 | 12th Oct 1981 |
| D4 | Stardrive | 8.8 | 19th Oct 1981 |
| D5 | Animals | 8.9 | 26th Oct 1981 |
| D6 | Headhunter | 8.9 | 2nd Nov 1981 |
| D7 | Assassin | 8.8 | 9th Nov 1981 |
| D8 | Games | 8.0 | 16th Nov 1981 |
| D9 | Sand | 8.3 | 23rd Nov 1981 |
| D10 | Gold | 8.0 | 30th Nov 1981 |
| D11 | Orbit | 8.0 | 7th Dec 1981 |
| D12 | Warlord | 8.5 | 14th Dec 1981 |
| D13 | Blake | 9.0 | 21st Dec 1981 |
What this shows I'm not sure, since it can't reflect on how good or bad an episode is since nobody had seen them before then. I suppose a good episode could trigger a high viewing figure the following week because it would be talked about at work and school.
Last updated on 11th of March 2000.