I've just listened to an episode of this on Radio 7. Having looked into the series a bit more, it seems amazing that it is not better known or that the series has never been released commercially. It ran for 10 series, had a spin-off which ran for four series, totaling over 90 episodes, which for a radio sitcom which ran between the 1980s and the 2000s seems staggering.
Does anyone know more about it?