David Letterman showed support for Stephen Colbert by posting a YouTube compilation of clips of him slamming CBS on "The Late Show."

Ten years on, CBS has snatched the crown off its head. The network appears to have grown so dismayed with the state of late-night television that it has unceremoniously canceled one of the genre’s most successful stalwarts: In a statement last night,

With the hosts Merv Griffin, Pat Sajak, David Letterman and Stephen Colbert, CBS has taken many runs at late-night TV. Some were more successful than others.

In the wake of CBS giving Stephen Colbert the pink slip last week, David Letterman’s official YouTube channel wasted no time in reminding us that the network has jerked around The Late Show for years,