I was about 16 before I realised that Happy Days was a show about the 1950s, rather than a show from the 1950s. Until that time, I could never figure out how Scott Baio could play a teenaged Chachi in the 1950s yet be a mid-twenties “Charles in Charge” in the 1980s.
On that note: Whatever happened to Scott Baio? I’d like to think that one day a cult director will come along and resurrect his career like Tarantino did for Travolta, but I’m pretty sure the TV show “Joanie loves Chachi” will remain his magnum opus.