There's an episode of Laverne & Shirley where they are going to a protest march of some kind in NYC, and one of them announces "Bob Dylan" will be attending... this is an 8th Season episode, though, which supposedly takes place in 1967. As we know, there was pretty much zero chance Dylan would be attending a protest rally in NYC in 1967, but it is kind of interesting to see the Dylan mythos enter into the "Happy Days" universe.

Why New York City? Bob Dylan could have just as easily come to Burbank.