It was a heartwarming blast from the past as three beloved stars of Happy Days reunited for a fan event that sent waves of nostalgia through social media. See photo ...

Happy Days featured several more Christmas-themed episodes over its decade-long run, including "Richie Branches Out" (Season 4) and "Christmas Time" (Season 6). But “Guess Who’s Coming to Christmas” ...

It’s amazing how a single sitcom—even one that arrived and took the pop culture world by storm—can create an entire universe of shows, characters and Saturday-morning experiments, but Happy Days may ...