According to Brian Long in his book The London Sound, both sides of the Beatles' single were now being played on Big L due to the saturation play that Help! was getting on radio and tv. As the record slips to #12 this week, Radio London starts to list the B-side I'm Down alongside Help! in the Fab Forty.

Something else that Brian points out is the amusing play on words that provided the stage name for the artist who enters the Fab 40 at #38 this week. Ernest Evans was said to resemble a young Fats Domino, so it seemed only natural he should be renamed Chubby Checker!

Additional notes from Mary Payne:

A recording of the Kenny and Cash Show broadcast on Thursday, Sept 2nd does indeed include an airing of I'm Down, plus a brief interview with Chubby Checker, taped the previous Saturday during the Radio London Club afternoon at the Marquee Club. Chubby must have been in the UK promoting his new single and was clearly attempting to shake off his outdated 'twist' image. Kenny and Dave, promoting their own new release, had the Marquee crowd yelling, "We want Knees! We want Knees!" but strangely, did not play their single on the show.Was this an attempt on their part to get Knees accepted onto the Big L playlist? So far, no evidence has emerged of the Kenny and Cash record having received airplay on Radio London, despite the single's B-side – called The B-Side (what else?) – being a product of Pall Mall Music, the station-linked publishing company. However, the Climber lists from this period are far from complete, and there's no reason why Knees shouldn't have been included. Maybe Kenny and Cash were merely forbidden from playing it on their own show? But they were a law unto themselves and if they'd wanted to play it, they would have done! It has to be said, it is strange that Knees was never given a place in the Fab Forty. (Thanks to the Pirate Radio Hall of Fame).