Playboy Mogul Hugh Hefner passed away yesterday from natural causes. Hugh Hefner popularized the term “centerfold”, and appeared in many television shows throughout the years. Playboy’s Penthouse and Playboy Afterdark were his shows, but he also appeared as a guest on many popular shows. Roseanne, Blossom, The Larry Sanders Show, Laverne and Shirley, The Simpsons, Sex In The City, Curb Your Enthusiasm, Entourage, and Family Guy were all programs he was a part of. Hugh Hefner was 91 years old.