I know what you mean - it's a beautiful piece of music.
A version was used on a TV advert in the late 1970s (IIRC). It might
just have been the early 1980s, but "late 1970s" is speaking more loudly
to me.
I think the general image portrayed in the ad was (probably French)
pastoral tranquility and community, and it was probably advertising a
foodstuff which benefits from such associations (bread, butter, or
margarine-type spread... maybe even cheese).
It was certainly that particular exposure which let me hear it for the
first time, and, I would suspect, many others in the UK. I liked it
immediately. I have a version on a Naxos CD: "Chants D'Auvergne".