I would bet that Leno might have prepped the audience and Carlin to be respectful. Say what you want about Jay - but he does not go for the cheap laughs or approval. How snarky would Letterman have been?
Of the two..I go for Leno. Letterman strikes me as
a 24 carrot phony....Leno has that innate ability to
adjust with alacrity,.....Jake
Lettermans dumb as a post.. Lenos less dumb..