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1951 on the radio, Then in 1952 on the CBS network With Steve Allen as the host. After one year in 1953 The show moved to NBC. One year and a half later Jack Parr became the host for 7 years. Then in 1962 Johnny Carson hosted for 30 years, followed by Jay Leno, then a short hosting stint by Conan O'Brien, then Jay Leno again and currently hosted by jimmy fallon.

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8y ago

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