NBC celebrates its golden anniversary in radio and television. Recalled is a half century of stars and shows. Orson Welles is the narrator and there are fifteen hosts: Jack Albertson, Milton Berle, David Brinkley, Johnny Carson, John Chancellor, Angie Dickinson, Joe Garagiola, Bob Hope, Gene Kelly, Jerry Lewis, Dean Martin, Don Meredith, Gregory Peck, Freddie Prinze and George C. Scott.