Rich Little did well over the years as an impersonator, well-known for his impressions of W.C. Fields & Richard Nixon. In 1978, HBO released “Rich Little’s A Christmas Carol” where Rich plays each part of the Dickens’ tale in a different impersonated celebrity. With W.C. Fields as Scrooge, Paul Lynde as Bob Crachit, & even Edith Bunker as Mrs. Crachit.
Someone posted the entire special on YouTube in several parts, the coolest is the first part that shows several HBO commercials before the feature!: