David Letterman

Exploring the sketches, contributions and influence of Jim Downey, one of the most impactful comedy writers in the history of "Saturday Night Live."

Galifianakis dreamed of becoming a star. But when Will Ferrell discovered his public access TV show, 'Between Two Ferns' and uploaded it to Funny or D...

Offbeat documentarian Chris Smith provides a behind-the-scenes look at how Jim Carrey adopted the persona of idiosyncratic comedian Andy Kaufman on th...