After the CBS network cancelled The Late Show With Stephen Colbert after three decades, one media expert has weighed in with her thoughts on the fate of political satire on national television.

David Letterman has finally given his opinion on the cancelation of The Late Show – the franchise that he founded.

David Letterman took aim at his former employer, CBS, over the cancellation of 'The Late Show With Stephen Colbert.

Speaking with his former executive producer, Barbara Gaines, in a YouTube video Friday, Letterman called the axing of The Late Show With Stephen Colbert “pure cowardice” and said he doesn’t believe the official line from CBS that the decision was purely about economics (the show has reportedly become a money-loser for the network).

"The people at CBS who have manipulated and handled this are going to be embarrassed,” the former 'Late Show' host says. “This is gutless”