Posted 1 minute agoSubscribe to Screen Time NewsletterCaret DownDavid Letterman Shredded CBS With Just 6 Brutal Words Over Stephen Colbert's CancellationDavid Letterman hosted The Late Show for over 20 years before Stephen Colbert took over in 2015.by Ben BlanchetHuffPost WriterFacebookPinterestLinkHot Topic🔥 Full coverage and conversation on Politics David Letterman slammed CBS using a not-so-subtle jab on his YouTube channel on Monday after the network announced that it would cancel The Late Show With Stephen Colbert, a franchise he began over 30 years ago.