The Top Hat Channel is an adult channel that doesn't air in Florida and Utah.
Bart first watched the channel when Homer got an illegal cable hookup. Homer caught him and warned him that only adults watch the show. Bart promised he wouldn't watch the channel again, but he later broke his promise and charged kids to come in and watch the channel. When the channel was airing a pornographic film, Milhouse was disgusted while Martin remarked it to be "compelling". Homer came in and the kids who were watching the channel ran off and Homer asked Bart to go to his room.