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The set (along with the two Janice Long sessions) can be downloaded here: Same version but in 320kbps: http://maggotcaviar.blogspot.co.uk/2013/06/felt-complete-bbc-sessions-1984-86.html
Did the radio sessions dry up after 1986?
Fraid so. Although it's still a mystery how they managed to get session for the global groovin' Kershaw show.