Comedian Sid Caesar was huge, in all ways. Handsome, tall and winged with linebacker shoulders, a fearless physical performer and mimic, creator of a U.N. of international characters (all fluent in gibberish), Caesar dominated television in the 1950s, helping to birth and perfect the sketch format. The son of a Yonkers luncheonette owner, Caesar minted money for NBC, attracting 20 million viewers on Saturday night, when the nation was half as populous and only half of households owned televisions. He was paid accordingly. In 1954, Caesar reaped $25,000 a week, the highest in television and more than David Sarnoff, the man running the network.