The landscape of late night TV has changed dramatically over the last year. Jay Leno retired, for good this time, and was replaced by Jimmy Fallon. Seth Meyers was brought in from SNL to take Fallon's old slot. And then just when everyone thought things were settling down... the best late night talk show host since Johnny Carson dropped a bomb.
David Letterman's announcement that he will retire in 2015, followed by the quick naming of Stephen Colbert as his replacement by CBS sent shockwaves through the industry. Jay Leno may have been ahead in the ratings when he left but ask most comedy insiders who they like best, and the name Letterman rises to the top. Dave's maverick style and dead pan one liners redefined what was possible on a late night program when he first came onto the scene, and we've been hooked ever since.
Here are 20 incredible David Letterman moments that kept us watching for more than 3 decades.