Dr. Heathcliff Huxtable is a fictional character and the main protagonist of the NBC sitcom The Cosby Show, which aired from 1984 to 1992. He was portrayed by actor and comedian Bill Cosby and appeared in all 201 episodes of the show. The character had a mostly positive reception from critics, and was named as the "Greatest Television Dad". Cosby's portrayal of Cliff Huxtable caused him to gain a reputation as "America's Dad". He was frequently shown wearing colourful sweaters.