Sid Caesar, left, and Carl Reiner attend the 9th Annual Primetime Emmy Awards on March 16, 1957, at the Colonial Theatre in New York. In a statement to NBC News, Reiner said Caesar was, "undoubtedly and hands down the greatest single sketch comedian and monologist that television has ever known. He set the template for all comedians that came after him."
Sid Caesar and Neil Simon during an opening night party for Neil Simon's "Laughter On The 23rd Floor" at Marriott Marquis Hotel in New York City. The play, which opened on Broadway in 1993, was based on Caesar's "Your Show of Shows."
Comedian, musician and television pioneer Sid Caesar is seen here in 'The Admiral Broadway' Revue in 1949.
Sid Caesar in a scene from the film 'Tars and Spars' in 1946.
Sid Caesar and Imogene Coca appear together in 'Your Show of Shows.'
Comedian Sid Caesar poses for a portrait circa 1952 in New York.
Sid Caesar talks to John Travolta in a scene from the film 'Grease', in 1978.
Milton Berle, left, Bob Hope and Sid Caesar wave to the audience after being introduced on stage at the 50th Anniversay Emmy Awards in Los Angeles on Sept. 13, 1998.
Legendary comedian Sid Caesar, right, accepts the TV Land Pioneer award presented by friend and comedian Billy Crystal during a taping of the TV Land Awards in Santa Monica, Calif., on March 19, 2006.