Landmark events in rock-and-roll history are examined in this series featuring new and archival interview clips. Subjects include censorship (such as Ed Sullivan's decision to televise Elvis Presley from the waist up); tragedies (the 1979 Who concert in Cincinnati, at which 11 fans were trampled to death); and moments that challenged cultural norms (the frontal nudity on the cover of John Lennon and Yoko Ono's `Two Virgins').