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

John Mulaney returns to his Chicago high school with David Letterman as they candidly discuss addiction, fatherhood and the state of stand-up comedy.

Rob Reiner profiles Albert Brooks, comedic legend, acclaimed filmmaker, talented character actor and a lifelong friend, who Reiner first met in their high school drama club.

Filmmaker Morgan Neville captures Dave Letterman on his first visit to Dublin to hang out with Bono and The Edge in their hometown, experience Dublin, and join the two U2…