John Oliver, Jon Stewart, Jimmy Fallon, Seth Meyers and more had cameos during the July 21 episode of "The Late Show With Stephen Colbert."

The late-night host acknowledged that "a lot of people out there are bummed" about the show ending next May, so he tapped a few famous friends to cheer everyone up.

Fox News host Greg Gutfeld is the ratings king of late night with 3.1 million average viewers, despite what Stephen Colbert may be telling his audience.

CBS could not figure out a path to profitability in an entertainment world increasingly dominated by streaming.