The Late Shift

David Letterman vies with Jay Leno and his manager to succeed Johnny Carson, retiring from "The Tonight Show." David Letterman vies with Jay Leno and his manager to succeed Johnny Carson, retiring from "The Tonight Show." David Letterman vies with Jay Leno and his manager to succeed Johnny Carson, retiring from "The Tonight Show." David Letterman vies with Jay Leno and his manager to succeed Johnny Carson, retiring from "The Tonight Show."