John Oliver returned to his old stomping grounds with a surprise cameo on "The Daily Show" to discuss America's "monarchy era ...

John Oliver made a surprise appearance during Jon Stewart's "Daily Show" monologue to "gloat" and "welcome America to its ...

And The Daily Show's Jon Stewart is already exhausted. "I found last week," he said at the top of the show, before staring dead-eyed into the camera and pretending to rub tears away, "exhausting.