David Michael Letterman (born April 12, 1947) is an American television host, comedian, writer and producer. He hosted late night television talk shows for 33 years, beginning with the February 1, 1982, debut of Late Night with David Letterman on NBC and ending with the May 20, 2015, broadcast of Late Show with David Letterman on CBS. In total, Letterman hosted 6,080 episodes of Late Night and Late Show, surpassing his friend and mentor Johnny Carson as the longest-serving late-night talk show host in American television history.He is also a television and film producer. His company, Worldwide Pants, produced his shows as well as The Late Late Show and several primetime comedies, the most successful of which was the CBS sitcom Everybody Loves Raymond. Several late-night hosts have cited Letterman's influence, including Conan O'Brien (his successor on Late Night), Stephen Colbert (his successor on The Late Show), Jimmy Fallon, Jimmy Kimmel, Jon Stewart, and Seth Meyers. Since 2018 he has hosted the Netflix series My Next Guest Needs No Introduction with David Letterman.