The piece refers to the Knack’s first release She Ain’t No Good/Who’ll Be the Next in Line which came out on Decca in 1965. In March ’65, Everybody’s Gonna Be Happy by the Kinks had made a brief appearance in the Fab Forty, with Who’ll Be the Next in Line as its B-side. The Knack did not feature in the Fab Forty till Stop… the band’s third Piccadilly single, was released. However, with climber information incomplete for much of 1965 and early 66, it is possible that previous Knack releases had been on the Big L playlist. This Wimbledon Palais promotion would suggest as much.