The comedian's morning television program, The David Letterman Show, was recently canceled. Since then, he's been a frequent guest host on The Tonight Show. Letterman explains the differences between daytime and evening programming, as well as how he paid his dues as an up-and-coming comedian.
Last night, after 33 years on TV as a late-night talk show host, David Letterman presented his final program. David Bianculli says Letterman's final show was a strong end to an illustrious career.
The off-beat funnyman retires this month after 33 years hosting late-night television. Fresh Air's David Bianculli says that David Letterman's humor "provided a new blueprint for the TV talk show."