David Letterman was passed over to succeed
Johnny Carson as host of
The Tonight Show, but is now poised to dethrone Carson as the longest-running late-night star in TV history. Letterman, 64, is nearing a deal with CBS that would keep him behind the desk of the
Late Show through 2014, according to
The New York Times. 2014 will mark his 32nd year in Late Night (11 years on NBC's
Late Night followed by what would be 21 years on CBS).? Carson ...