A dramatic account of the politics and personalities behind NBC's calamitous attempt to reinvent late-night television. When NBC decided to move Jay Leno into prime time to make room for Conan O'Brien to host the "Tonight" show-a job he had been promised five years earlier-skeptics anticipated a train wreck for the ages. It took, in fact, only a few months for the dire predictions to come true. Leno's show, panned by critics, dragged down the ratings-and...