I have forgotten which search rabbit hole I was down, but ended up at Robert Wyatt’s Wikipedia page. I know this story, or at least I knew the tale, but was uncertain about the veracity. The older I get the more I think social change happens ever faster. Yes, there is another more mundane explanation.
Two months later Wyatt put out a single, a cover version of “I’m a Believer”, which hit number 29 in the UK chart. Both were produced by Pink Floyd drummer Nick Mason. There were strong arguments with the producer of Top of the Pops surrounding Wyatt’s performance of “I’m a Believer”, on the grounds that his use of a wheelchair “was not suitable for family viewing”, the producer wanting Wyatt to appear on a normal chair. Wyatt won the day and “lost his rag but not the wheelchair”.