Well, I've never really watched much TV (and I only ever actually watched three of these when they came out), but...
The Prisoner (argh, I guess I now have to add 'the original' to that
" title="Angry" class="smiley" /> )
The Avengers
Battlestar Galactica (original one)
Teenage Mutant Ninja Turtles (1987 one)
Sonic the Hedgehog
Danger Man/Secret Agent
Rocky and Bullwinkle
Danger Mouse
Firefly
Xena: Warrior Princess
Hercules: The Legendary Journeys
Cosmos: A Personal Voyage
Buffy the Vampire Slayer
Angel