The ultimate example of what a talk show should be: Talking to the guests, listening to what they want to say, not what they were paid to say.
The David Letterman episode shed some light of why Norm wouldn't have made it into what talk shows are today; scripted, choreographed, minor improvisation.
Norm's show is the very antithesis of "the talk show": small audience, no production queues, non-sequitur ideas, genuine laughs.