Three of the funniest and smartest guys on Tv. I dont feel like checking my facts but Im pretty sure conan is an ivy league grad. Colbert and Stewart both went to prestigious colleges and all three of them are witty as shit.
Jon blows me away, every time a guest comes on who has written a book he knows all about the book. Im pretty sure that guy reads non stop.
He might not read all of them cover to cover but I bet that he reads a good portion of the material he talks about on the show. It is obvious that he knows the material in the books when he talks to the authors. Just because reading a book a week is beyond your ability does not mean others cannot accomplish this task.