Hey Mick,
That takes me way...way... way back to the mid 1960's.
You may have been listening to Radio AFN, from Germany @ 06.45hrs. They started broadcasting in 1957.
Programmes included the 'Louisianna Hayride' & many others in those distant years.
( It was originally run by Herman Lehmann , son of German immigrants)
The old programmes were broadcast from several locations in Germany to the UK and Europe.
(Originally broadcasting from Bremerhaven then Frankfurt and other towns, as the American took over , after 'the war').
The one you may be thinking of was .. Hillbilly Gasthaus , all bluegrass !!!
AFN is available on the web now and have many repeats of the old shows.
I wish we now had similar shows in the UK of 'real' country music as it used to be. !!!

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