Most lists were group efforts, executed quickly, per O’Donnell. “Sometimes we’d write 100 of them. Then I’d pitch the best to Letterman minutes before the show. He’d pick a couple, add a couple.” The ...

When David Letterman retires following his May 20 broadcast of "The Late Show with David Letterman," we won' t just be saying goodbye to one of the greatest and most influential talk show hosts in ...