>> knock, knock. >> who is there? >> there was only three networks, there was only one late night show, really, jack parr -- >> we just keep talking with no script. >> i know, it is agony. >> jack parr invented the late night television talk show. >> you feel confident? there is not a man in the world that can beat me. i'm as good as liberace. >> jack had in his corner his personality. his fabulous, complex, frightening, neurotic, but in other cases, enthusiastic, informed personality. it made for great television. >> how much time have i done? >> i don't have a watch either. >> has it been charming?