I avoided the 80s because there would have been so many easy choices, like The Muppet Show, Fraggle Rock, and ALF. Can you think of any I left out? I know there are probably a ton of shows I don't remember.
I like your list, but I do have one problem with it.
No Bear in the Big Blue House.
I mean truth be told, I was never a huge fan of this show, but that show outlasted all the shows on your list, honestly it might have to be consider number one. It had a ten year run, it just ended in 2007, that's a way longer and better run than Dinosaurs.