The mud is flying on late-night television these days.
And it's coming from all corners. Jay Leno and Conan O'Brien have turned their ire toward NBC over the "Tonight Show" debacle toward each other.
Even David Letterman, no friend of NBC, is chiming in.
And plenty of other television personalities have piped in as well.
With so much mud flying, ABCNews.com thought it would be useful to have a primer on who said what. Below, late night's mudslinging match:
Rosie O'Donnell on...Full Story