Pebble Mill?

Hello folks, I'm new here. I also posted this on another forum but got feedback, so maybe I'm wrong or no one else saw it!....

Does anyone recall an episode of Pebble Mill, the BBC daytime chat show, where a guy got up to sing a (light psych) pop song called -- as best as I can recall -- "Unreal Is Real." That was its chorus.

Now here's the rub: I seem to recall this singer (who wore Lennon type glasses) being introduced as Denis O'Bell. Anyway, I associated the name with the track, You Know My Name (Look Up The Number). The presenter made a reference to the Beatles before the performance.

Granted it's not much to go on, but I'm certain I didn't just dream this. Perhaps it was an April Fool's gag? (But for whom!) Alas, I can found nothing about it anywhere. It would have been late eighties or early nineties.

Cheers!