X-Files
Millenium
You Can't do That on Television
Sliders (the first season was definitely my fav. though)
Space: Above and Beyond
Star Trek Deep Space Nine (I know most consider it the most boring out of all the Star Trek series but it was my favourite).
Earth 2
Inspector Gadget
The Teenage Mutant Ninja Turtles (original)
It's a Knockout (I doubt anyone outside of Australia knows of this)
American Gothic
Mr Squiggle (once again I doubt anyone outside of Australia knows of it, probably anyone outside of my age bracket wouldn't know of it either. My favourite characters were Gus the snail and the blackboard: Hurry up! (actually that might have been a rocket quote))
Full Frontal, Fast Forward and the rest (Australia exclusive)
Freaks n Geeks (I only caught a few episodes on late at night but it was good)
The Young Ones (one of my favourite shows ever. Pity it only lasted 2 season and 12 episodes)
Quantum Leap
Star Trek Enterprise (It's probably still on tv in the US but not here. It also has the guy from Quantum Leap in it as the ships captain no less.)
Futurama
That's My Bush (Come on, only one season, for fuck's sake

)
Don't Forget Your Toothbrush (as 1234 mentioned. Tim ferguson rocks, as do all the members of the Doug Anthony All Stars).
Good News Week (Obscure Aussie reference again)
Grim Tales (hosted by Rik Mayall)
The Muppets
The Storyteller (with Jim Henson's muppets)
I don't miss Wonder Years but everytime I think of it this quote springs to mind:
"Neither he or I knew it at the time but..."