"Diamonds in the Sky" was much later. Sometime in the 1980s, in colour, and fronted by Julian Pettifer, the then 'glamour boy' of the BBC. He seems to have vanished without trace since.
"The Pilots" also featured interviews with luminaries of the period such as 'Mickey' Miles the BOAC 707 fleet manager. He started off life as a barrister - so not much chance, stood in front of him on a disciplinary, then! Captain Priest of BEA was shown sweeping the leaves off his lawn and making sardonic comments about the state of the gardens of the BOAC pilots, because they were always away. The previously mentioned Vanguard sim session was, I'm fairly sure, being conducted by captain Ron Gillman. Now he was also a big 'wheel' in either BALPA or GAPAN, and it occurs that these two organisations might also be of help.