Freddy Krueger-
"Casper" is ok to him, watched it when there was nothing good on.

Jason Voorhees-
"Camp Lazlo" reminds him of his childhood a little bit.

Michael Myers-
He doesn't mind "Grim Adventures of Billy and Mandy". He relates to Mandy a bit too.

Ghostface-
"Danny Phantom" is one of his favorite childhood shows.

Bubba/Leatherface-
Watched "Mr.Peabody and Sherman" growing up cause they didn't have many new movies. He doesn't get the jokes, he just likes it for the characters and plot of the show. Holt just uses it as a way to teach him when he's busy in the basement,and/or wants him out of his hair for a while.

Pennywise-
Doesn't own a tv. And how is he going to watch anything with the dirty water in the sewers? He would get electrocuted. Sometimes the kids he captured try to talk him out of eating them by talking about their favorite shows, pets, and tell him that they could bring someone else for him to eat, but he's not that interested in the slightest.