 The series premiered on November 24, 1972, preempting "The Dick Cavett Show".The first episode was the broadcast of a concert taped at Hofstra University on September 21, 1972 with Alice Cooper, Bo Diddley, Curtis Mayfield and Seals & Crofts.The second episode, broadcast on December 8, 1972 and again preempting Cavett, featured The Allman Brothers Band and Chuck Berry.