I seem to remember a Morse episode where the murder victim was a Teifenbrun-type character who had designed a revolutionary (sorry) turntable of which Morse had an example. Sources say (I've too much time on my hands today) the the system he had was Roksan Xerxes/Naim Nait, speakers unknown.

Then there was that pair of Martin Logans that appeared in most episodes of Friends. Anyone who had a teenage daughter in the late '90s/early '00s will remember them.....