
In 1982, Letterman launched Late Night with David Letterman on NBC, bringing an ironic, absurdist sensibility to late-night television. The show's experimental bits and deadpan host reinvented the genre for a new generation.
An Indianapolis native and former weatherman, Letterman honed a sardonic comic voice in Los Angeles clubs. A failed morning show preceded his late-night breakthrough on NBC.
Late Night blended ironic detachment with stunts, Top Ten lists, and recurring characters. His style influenced a generation of comedians and talk-show hosts.
After a public battle to succeed Johnny Carson, Letterman moved to CBS in 1993. Over 22 more years he became the longest-serving host in American late-night history.
Portrait: Zach Catanzareti Photo · CC BY 2.0 · via Wikimedia Commons