From Robin Williams' debut as Mork to the infamous 'jump the shark' moment, here are five essential episodes of Happy Days.

Theme songs are uber important to the success of a show. Nothing is more memorable than a catchy melody. So the quickest way to stick in an audience’s mind is to pen a truly stellar opening theme. The ...

In a Facebook post penned hours after Reiner's shocking death, Happy Days star Anson Williams (Potsie Weber on the show) ...