From cringe-inducing interviews to behind-the-scenes scandals, these unforgettable late-night TV moments were impossible to ignore.

NEW YORK AP - A CBS producer accused of blackmailing David Letterman used pages from a former assistant's diary that described an affair with the "Late Night" host, a law enforcement official ...

I dearly wish it didn't sound like such hindsight now. But, I swear, you could see on the air where an unhappy lover could make David Letterman vulnerable. We saw his assistant Stephanie Birkitt on ...