Saved by the Bell. I watched that everyday in my teens. The original was great, but the New Class felt like a cheap rip off. When they brought Screech back I knew the show was done.

My friends in college thought it was funny that they could say one random little thing about SBTB, and I could tell them right off the top of my head what episode it was in and the moral of that episode, and sometimes I could even come up with quotes. And I can't recall right now what I had for supper last night...