National Lampoon Animal House. It was called Delta House, but had some of the same characters and actors from the movie. I was so upset when it got cancelled that teen me even wrote a letter of complaint to the network.
I legit didn't know it was a movie when I was younger until like the third time I saw a rerun on the episodees with Connor in them. Was very confused, thought I kept missing episodes.
Those ones I knew about! I used to watch the Beatlejuice animated series when I was a kid. Also, I watched it before I ever watched the original movie.