Never heard of Blake 7. Is/was it OTA, cable, or netflicks?
British OTA, then came here on cable. I bought the DVDs and still cherish them. Four years of Shakespearean tragedy. A crew of outlaws band together, wanting to run from the corrupt Federation, but their leader forces them to turn and fight. Robin Hood in space. The Federation emblem is our Star Trek emblem, just turned askew. Terry Nation was the Dr Who creator of the Dalek. Gareth Thomas, who played Blake, was a Shakespearean stage actor.
https://www.youtube.com/playlist?list=PLgeGcX2U-sIEpNScdK-aHIMCx99Fx5E7h
There are probably better lists.
My episode guide
http://www.iment.com/maida/tv/b7/b7episodeguide.htm
My character guide
http://www.iment.com/maida/tv/b7/b7characters.htm