Simpsons Season 4, Episode 3: Homer the Heretic

While skipping Sunday's church services, Homer discovers the joy of staying home and having the house all to himself while Marge and the kids experience a rambling sermon from Reverend Lovejoy. Homer decides to start his very own religion customized for himself, despite Marge's continuing objections for giving up his faith. Marge, Reverend Lovejoy and Ned Flanders all try to convert Homer back to Christianity but fail.