I was going to say 'Saphire and Steel', but you beat me to it Neo. I only vaguely remember it though, and couldn't tell you what it was all about.
As for the SciFi channel, I think they just get whatever is cheap, and that they can get the rights to. It's not all bad and it is getting better all the time. In the UK now they are showing 'The Prisoner' and 'UFO'. They sometimes show 'Alien Nation' too.
Unfortunately, they still insist on showing 'The Six Million Dollar man' and the 'Bionic Woman' every day though, and have now begun showing 'Wonder Woman' :disgust: They call it 'Pulp SciFi'. I would call it something else.
'Blakes Seven' is a BBC programme so it is on UK Gold, along with 'Dr Who'. If you haven't seen it before it is a bit old (late 70's/ early 80's), and done on a shoestring with wobbly cardboard sets, but the stories and concepts were very good. I think only Neo and I are old enough to remember these shows. Quite a few people have mentioned it in the 'Top Five TV shows' thread. As I said there already, it was written to begin with by Terry Nation, and is very like his usual work - Totalitarian society stuff. A group of rebels go off in a strange ship called 'Liberator' and have adventures. I liked it better when they started to have this sort of space-pirate lifestyle, and Terry Nation stopped writing it. However, the leader Blake disappeared, most of the crew then got killed at the end of one season, and I think it lost it's way. Some of the characters were excellent - Avon, who took over from Blake as leader was a great anti-hero; Villa, the cowardly thief; and Servalan, the villain. Neo is obviously a big fan, so he can tell you more.
I can't see them bringing 'Blakes Seven' back, and it would never be the same without the original cast. They are really starting to age now, if you see them on TV in other things.