The veteran comedian, 78, shared a video montage of him roasting the TV network during his decades-long career of hosting “The Late Show” from 1993 to 2015.

David Letterman is subtly showing support for his successor Stephen Colbert after CBS' shock cancellation of "The Late Show."

Rumors about the $40 million annual losses appeared to stem from reports published by a media outlet called Puck and the New York Post.