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.
Flip Wilson Clerow "Flip" Wilson Jr. (December 8, 1933 – November 25, 1998) was an American comedian and actor, best known for his television appearances during the late 1960s and 1970s. In the early 1970s, Wilson hosted his own weekly variety series, "The Flip Wilson Show". The series earned Wilson a Golden Globe and two Emmy Awards, and at one point was the second highest rated show on network television. Wilson also won a Grammy Award in 1970 for his comedy album "The Devil Made Me Buy This Dress".