Bob1370 said:...Late night audiences, conversely, like a more informal, loosely structured program. I think to a degree, Conan has the same problem, although he'd work best a little later in the day. His show would work better as a 7 PM prime-access offering. Sometimes it's not the show that's the problem, it's the time slot.
I'll remind you that former late-night host Craig Kilborn didn't work in the prime-access hour when Fox gave him a trial show last year.