Further to Roy Zinck's earlier posting I have tried to find the source of the verse at the beginning of rendition on 'Blackburn Sings Christmas with Gareth Malone' but sadly without success.

I tried a link via Gareth's agent without reply, the BBBC referred me to Swann Films who made the programme and they have now sent a short reply saying they can't help.

It all seems odd to me, so sorry no luck.

Maybe someone else might have more success.