A tribute to Larry King's 50-year career in radio and TV, from his early days in Miami to his national radio program to his CNN talk show, which began in 1984. Included: comments from George H.W. Bush; Mariah Carey; Walter Cronkite; defense attorney Mark Geragos; Kermit the Frog; and Dolly Parton. Anderson Cooper and Ryan Seacrest host.