Happy Days star Ron Howard threatened to quit the show in response to a change ABC wanted to make involving Henry Winkler's ...

But even if you’ve seen all 255 (!) episodes, you might not know all of these fun facts about the Milwaukee-set TV classic.

In one particular season two episode of Happy Days ("Fonzie Gets Married"), the single ... but it was not her first regularly scheduled TV series. In 1968, at age eight, she was added to the ...