The blues is the birth of all popular music. I've about 100 blues LPs, some rare, some not. I'm not a purist, as I like pretty much every genre there is, but blues comes into most stuff. There are other scales but largely blues vs major or three intervals down country vs minor. This is not totally technically true, but truer than anything Conway has said in the last 2 years.
Never watched many TV sitcoms, but there would be plenty of material at Oakwell for a disaster sitcom.
I remember doing a music quiz that he compered, which from memory might have been in The Cockpit. Any chance that would have put us in the same room at some point?