Let JMS do it
It's a pity how dismissive some people are about Blake's 7. No doubt they are the same sort of people who didn't have the attention span to appreciate Babylon 5. Blake's 7 broke the mould by having morally ambiguous characters (Avon only allied himself to Blake because it suited his own purposes) and not being afraid to kill characters off. Come to think of it, the idea of rebelling against an oppressive regime does have one or two echoes with today.
When compared to what's on offer now (BSG - hugely over rated and I much prefer the original & Bionic Woman is in many respects a rehash of Buffy as well as the original. Only the Stargate franchise and Dr Who seem to have legs) at least Blake's 7 broke new ground, something that very little in recent years (with the exception of B5) has tried. Come to think of it JMS (B5’s creator) is known to be a fan of the original. How about offering him the job of remaking Blake's 7?
The new Dr Who has been a triumph as a result of the attention lavished on it. Who is to say that something similar couldn't be done with Blake's 7. The thought of a beautifully CGI rendered Liberator is awsome.