3. 'Laverne & Shirley'
Schlemeel, schlemazel, hassenfeffer incorporated! Cindy Williams and Penny Marshall's dynamic duo were such memorable characters that you forget they were originally conceived as little more than one-off dates for Happy Days' Richie Cunningham and Arthur Fonzarelli. Thankfully, Penny's brother — producer Garry Marshall — somehow had the foresight to see there was series potential in the misadventures of these Milwaukee brewery workers, and soon enough, we were all living in Boo-Boo Kitty's world. Think of how many factory accidents have been caused by people trying to replicate the glove-on-the-beer-bottle assembly line trick. Guess how many young Italian kids decided to take dance lessons so they could be like Carmine Ragusa. Try to imagine a world without Lenny and Squiggy. You can't. DF