Family Guy - Season 4 Episode 18 The Father, the Son, and the Holy Fonz Parental Discretion Advised, that's how you know it's good.
Overview: When Peter’s dad comes to visit, he tries to impose his religious beliefs on the family. But after a mix-up with the holy-water leaves Stewie in a bubble, Peter decides to form a church worshiping his hero, the Fonz.