Yes. It was a Documentary on one of the UK Channels - BBC, Anglia or Channel 4. So long ago now I can hardly remember. We don't need Optical Printers now. 🙂
This is a portion of an hour-long episode of a Canadian program called Vista entitled The New Magicians, directed by Michael Lennick. It was shot primarily in Los Angeles in November and December of 1984 and first aired in March of 1985 (or thereabouts.) This is the only place I've ever seen it on the web.