"1961 - 1970" . . "Four Point Entertainment." . . . . . . . "Casey Kasem introduces concert footage of the supergroups of the sixties. Interspersed with news footage from that period." . . . . . . . . . . . . . . "In the late 60s music began to evolve into a heavier sound. With blues-inspired, guitar-driven sound and trippy lyrics, this new hard rock soared to the top of the charts."@en . "The Sixties"@en . . . . . . "Criticism, interpretation, etc" . . "The sixties" . "The sixties"@en . . . . . . "Home use only."@en . . . "After the British invasion, music began to evolve into a heavier sound."@en . . "Casey Kasem's rock 'n roll goldmine (VHS)" . . . . . . . . . . .