The “Happy Days” alum, 79, shared a photo last fall of Max working on a laptop while cradling a a baby ... as 1950’s greaser Arthur “The Fonz” Fonzarelli on “Happy Days.” ...

Set during the 1950s, the sitcom shamelessly catered to Baby Boomer nostalgia ... According to Howard: "The other idea was to move the Fonzie character front and center. It was kind of a reckoning ...