Spotted thanks to Twitter: a episode of Young Canada on Canadian television channel YTV featuring an appearance of Our Trev which was aired sometime in 1990, apparently. It could be that the interview segment itself is from 1989. It concerns the decline (at the time) of vinyl, and - always at the forefront of audio technology - Trevor establishes himself as an advocate of the DAT format, which had its' consumer debut in 1987. Interestingly, Trevor is introduced as the ex guitarist of Yes.
The part with Trevor is at the 2:40 mark.
