the late garry marshall and so nice to remember him and while i was on set with them i got cindy to reveal secrets about her hit show 40 years after its premiere. >> one, two, three, four -- >> that famous opening was an idea of garry. he said, penny, teach sindh they little dance you did on the way to school with your chums. we did it once, and i didn't get it. the up and down, schlameal, should lamazel. and the second take, he said that's good. we're out of here. >> laverne and shirley's very first tv appearance was when they guest starred on the show as fonzi and richie's dates. >> when we were first offered the show penny and i were writing together and he called the office and said i've got these two characters on "happy days" who date the fleet. >> so, shirl what do you think of this kid? you've been with worst. >> he's nice and a tie, too. >> their own series ran from 1976 to 1983. the two were roommates who worked in a milwaukee brewery, but shirley didn't sound like a midwestern gal in the beginning. >> if you watch the first 13 episodes which i refuse to watch now, i've got this