Of all the best Science Fiction series, not movies or one off specials ever aired on TV, I have five firm favourites which I can watch again and again. Presented, like in all contest formats should be, in reverse order;
Fourth: Red Dwarf (But not ‘Back to Earth’ – A shockingly bad end to a fantastic belly laugh of a series.) A small cast forever on fine form. A perennial.
Third: Farscape. Not so much for the Jim Henson creature creations as for what was done with them by the writing, direction team, and the actors.
Second: Babylon 5 (Series 2-5) Michael J Straczinski’s epic. Great story arc.
First: Firefly. Joss Whedons magnificent writing shines through. Great character development, smart stories, and snappy dialogue. Possibly the best Sci-Fi TV show of all time. Until something better comes along.