The Story of Late Night | Episode 4: Letterman vs. Leno

Johnny Carson’s 1992 retirement touches a nation and touches off an epic late-night war between Jay Leno and David Letterman as Letterman moves from NBC to CBS and creates “The Late Show” franchise. But it’s newcomers Conan O’Brien and cable startup Jon Stewart that introduces hilarious new comedy perspectives that changes late night’s sense of humor forever.