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

Winkler immediately sashayed his hips, channeled his Happy Days greaser, and got the iconic theme song running on the jukebox before signing off with a Fonz-arrific, "Nice to see 'ya." ...

In “Happy Days,” Howard played Richie Cunningham and Winkler played Richie’s friend, Fonzie. Richie’s other pals, Potsie and Ralph, were portrayed by Williams, 75, and Most, 71 ...