Comic Relief USA was a non-profit charity organization hosted in part by a stand-up comedian who rose to fame in what television series?
Robin Williams Robin McLaurin Williams (July 21, 1951 – August 11, 2014) was an American stand-up comedian and actor. Starting as a stand-up comedian in San Francisco and Los Angeles in the mid-1970s, he is credited with leading San Francisco's comedy renaissance. After rising to fame as Mork in "Mork & Mindy" (1978–82), Williams established a career in both stand-up comedy and feature film acting. He was known for his improvisational skills.
Bill Cosby William Henry Cosby Jr. ( ; born July 12, 1937) is an American stand-up comedian, actor, musician, and author. His start in stand-up comedy began at the hungry i in San Francisco; he then landed a starring role in the 1960s television show "I Spy". He was also a regular on the children's television series "The Electric Company" during the show's first two seasons.