Happy Days faced some unexpected ratings turbulence early on in its run. Luckily, creator Garry Marshall knew just what to do ...

Ron Howard’s earnest Richie, Henry Winkler’s effortlessly cool Fonzie, Tom Bosley and Marion Ross as TV’s ultimate parental ...

Happy Days created one of TV’s greatest mysteries, but a dark fan theory involving time travel, the Fonz, and a talking dog ...