Hints and tips:
...Appearing on Jack Paar’s The Tonight Show, Gregory became the first African-American comic to sit on the couch next to the host after delivering his monologue....
...John F Kennedy was the first presidential candidate to woo late-night viewers on Jack Paar’s Tonight Show in 1960....
...That is a far cry from the beginnings of late-night talk TV more than half a century ago, when men such as Jack Paar, Johnny Carson and Dick Cavett were not above inserting a certain edge....
...Paar, the talk show host, 30 years earlier....
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