That's interesting John - JRR has never really been the same since Peter Clayton left it, I had a couple of requests played by him back in the day, always amazed that they actually got picked. He was excellent on 'Sounds of Jazz' as well on Sunday late nights. Charles Fox was also outstanding on BBC radio for jazz broadcasting around that period - very authoritive and his shows much valued by me (and wish I'd recorded them).
Yes, David Jacobs was the guy with the plummy tones, that's who I was thinking of.