Just been watching an episode of Pop Quest (UK music quiz show) and they have a feature on setting up gear for the Modern music gig at the Hamersmith odeon with chats from tour manager Robbie Wilson and promoter Harvey Goldsmith and at the end the contestants are asked questions then they play an excerpt of Kiss of Light
I'm going to try and get it on youtube if that's ok with Bill
I think it's a small typo and hotbroooks is referring to the music TV series 'Star Rider' from 1977 that features a performance from BBD:-
https://www.imdb.com/title/tt11005038/fullcredits
From which this poorly recorded clip is taken:-
https://www.youtube.com/watch?v=NFSWHpBj3Lo
It would indeed be incredible if someone, somewhere, were to find a decent recording of that program; such as you have found with your video of 'Pop Quest'. But alas, I think the chance of that happening after all these years is tiny, to none!