By 1956, Elvis Presley was a mainstay on several television variety shows, appearing in short succession on Milton Berle's, Steve Allen's and, as has become legend, Ed Sullivan's shows. U2's Bono, himself a legend, narrates this documentary written by Elvis biographer Peter Guralnick, part of a fascinating three-disc series on Elvis's vast contributions to rock-and-roll history. Includes "Blue Suede Shoes," "Don't Be Cruel" and more.