I grew up in the '90's. I didn't watch a lot of TeeVee, but these are the shows I can remember catching every once in a while. Beast Wars, Pokemon, Goosebumps and G's Island were probably the most-watched.
Beast Wars (had THE hugest crush on Dinobot you don't even...)
Old School Sesame Street (with like the crazy disco pinball machine and mind-bending flashing colours of awesome)
Doug
The Munsters
Sabrina the Teenage Witch
Home Improvement
Gilligan's Island (I still need to try a coconut creme pie)
The Adam's Family
That one show with the people battling giant space insects
Rugrats (the alien abduction episode gave me nightmares)
POKEMANS
Beetlejuice
Captain Planet LOL
Goosebumps (the eppy when the kids were being incorporated into lunchmeat = priceless)
Wishbone
And probably others.