Johnny Carson's farewell to The Tonight Show was an emotional moment that still sticks with viewers, over three decades later. The moment was a year in the making, with Carson announcing his departure ...

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

As Letterman put it, Carson saw little reason to worry about his employee's emerging program.

Bob Newhart was one of the most prolific guest hosts of 'The Tonight Show Starring Johnny Carson' — but the writers weren't all fans of how he worked Harry Langdon/Getty; NBCU Photo Bank/NBCUniversal ...