Stephen Colbert shocked his audience and late night fans, announcing CBS had decided to cancel his long-running show. “The Late Show” is the most-watched late night talk show on television, but it is expensive to produce and has faced declining ratings.

In an interview airing on "CBS Sunday Morning" April 23, the late-night TV host describes his show as a place where, for eight years, people could come "for joy, and light, and levity."

In 1993, he started working as a writer-producer on Late Night with David Letterman, which aired on NBC. Burnett ultimately made the move to CBS with Letterman when The Late Show was picked up at that network.