For a generation of us, "Welcome Back Kotter" was the tv show we grew up with, and it produced a HUGE star in John Travolta. Today, I was so sad to hear that Ron Palillo, The actor best known as the nerdy high-school student Arnold Horshack on “Welcome Back, Kotter,” has died in Florida. Ron was the funniest guy EVER, on a show that had some really, really hilarious actors, so I will miss all those chuckles.


I can still sing the theme song to "Welcome Back Kotter" to this day, and I bet you can too....RIP Horshack.