Herman's Head: This series went on hiatus after three seasons. I never heard about them airing any reruns, but at least we have that Simpsons episode when Lisa thinks about using Bart as a science project, then laughs, and Marge asks her what's so funny, and Lisa says "Oh nothing, I just remembered an episode of Herman's Head." I believe the episode she's thinking of was when Louise slammed the phone down on someone, then asked Herman "Do you think I sound like that Lisa Simpson character?" and Herman gave a 'huh?' look and said "No!"
Charlie Hoover: Charlie had an alter-ego who was played by Sam Kinison, who had died (car accident, I believe) that same year.
The Heights: It's a shame that the song "How do you talk to an angel" did so well, but the show did badly, even though the cast was in the music video. Lenny and Stan were friends that put together the band, Jodie and Dizzy were a couple that became expecting, engaged, and married (in that order), Alex (Jamie Walters, later played Ray Pruitt in 90210) and Rita were a couple that became engaged, JT and Hope were remaining friends. Half the people tried to tell me it was a spin off of 90210, but it wasn't.