Overview: Music: --Phyllis Diller, Connie Stevens and Des O'Connor - ""By the Light of the Silvery Moon"" --Connie Stevens - ""Jumpin' Jack Flash"" --Des O'Connor (Summer 1971 host) - ""Firefly"" and ""Unchained Melody"" --Des O'Connor - medley: ""Dream,"" ""If I Had You,"" ""My Melancholy Baby"" and ""I'm Always Chasing Rainbows""