Stephen Colbert's final 'Late Show' airs Thursday. Here’s how other great late-night hosts said their goodbyes.

From Carson to Conan, there’s a long history of late-night television hosts leaving an unforgettable impression as they sign ...

Johnny Carson — the King of Late Night, and of Good Manners

Tonight Show host Johnny Carson rose above political humor. Thoughts on the 25th anniversary of his last show.