Ah, “Firefly.” Such a tremendous show with such a tragically short life.
My own list:
Firefly
X-Files (first six or so seasons)
Mystery Science Theater 3000 (especially after Mike Nelson took over)
Seinfeld
Dexter
Breaking Bad
Lost
The Office
Star Trek: The Next Generation (mostly from season three on)
Battlestar Galactica (new one on SciFi)
The Shield
Curb Your Enthusiasm
Anyway, that’s what I can come up with off the top of my head.