He was known for `` Your Show of Shows '' and `` Caesar 's Hour '' Movie credits include `` It 's a Mad , Mad , Mad , Mad World , '' ` ` Airport 1975 , '' `` Grease '' He was part of a pioneering group of personalities who helped establish television . The following is an excerpt from the book " A History of Television : From Ancient Times to Today by John F. Kennedy Jr. ( Paperback ) ISBN 0-415-07783-7 Page 1 -
He was known for `` Your Show of Shows '' and `` Caesar 's Hour '' Movie credits include `` It 's a Mad , Mad , Mad , Mad World , '' `` Airport 1975 , '' `` Grease '' He was part of a pioneering group of personalities who helped establish television . The funnyman also had a successful personal life , married for 67 years .