While it is still available, check out the recent BBC Archive Hour with Jancis Robinson. She (or rather the BBC Producer) has dug out all sorts of audio clips showing how our view of wine has changed in the UK over almost a century.
I need to listen to it again in detail, but there are great insights into the emergence of supermarkets, the role of women as decision makers, scandals and frauds, and much more.
Well worth a listen - I hope they keep it up for a while.
(and some of the accents need to be heard to be believed - and I don't mean JR's)