India, July 23 -- American television host and comedian David Letterman is not okay with the cancellation of Stephen Colbert's The Late Show, and he is expressing his disappointment by taking a dig at the network behind the decision.

While David Letterman hasn't spoken out specifically about the cancellation yet, he is dropping hints. He is using his past comments on CBS to reflect his thoughts after The Late Show was cancelled by the network.

On July 21, David Letterman, 78, took to YouTube to share a video montage of him roasting CBS during his more than 20 years of hosting The Late Show from 1993 to 2015. The clips are all from David Letterman's The Late Show episodes, including moments from 1994, 2003, 2004, 2007, 2010, 2011, 2012 a...