Best sci-fi TV shows of all time

I like all these shows, but really, no Star Trek TOS? Likely the most influential scifi series ever on television.
Futurama? Come on, I love that show, but it's hardly good science fiction (unless you are fascinated with the "finglonger").

No "Space Above and Beyond"? Easily one of my all-time favourite scifi shows. I still watch that at lease once every couple of years.
And I don't see why B5 was so far down the list (unless they are not in any particular order). Personally, in my opinion, that show was, up until The Expanse, possibly the best scifi show ever to hit television.

You guys really need to add the words "in my opinion" to your lists. There really is no "top scifi shows of all time" since we all have our own tastes.