As sad as I am when I heard of comedy icon Joan Rivers passing, I will always remember one specific on-screen cameo she made. I grew up in a house where we had HBO. In the early days, it was channel 5 out of the 13 available. Okay, so we watched a lot, and I mean a LOT of movies on HBO. One of the best was the third Muppets movie, The Muppets Take Manhattan. Yes, we were introduced to the 'Muppet Babies', but I remember all the celebrity cameos which included then NYC Mayor Ed Koch, Brooke Shields, Gregory Hines, Elliott Gould, and, Joan Rivers.