programme ended just before 7 pm (GMT) tonight 28 Dec. 2016 - but may be available online on bbc i player - try http://www.bbc.co.uk/radio2 (Johnnie Walker meets Bonnie Raitt, broadcast 17.05- 19.00, so I missed nearly half of it)

I didnt switch stations after the programme ended; I'm now listening to "The Folk Show" presented by Mark Radcliffe.