That's exactly what I did! We had a couple of Bolex cameras and a beautiful, mouse-ears Arriflex - point any of them at a monitor in a dark room and the quality

That's exactly what I did! We had a couple of Bolex cameras and a beautiful, mouse-ears Arriflex - point any of them at a monitor in a dark room and the quality was good enough for visuals in a warehouse that's also lit up by strobes / lasers / flashing lights etc. We were lucky enough to have a Rank film lab nearby who would give us out of date stock, and occasionally stock that was out of date and used but undeveloped - so every now and then we had loops of double exposures of the Amiga screen and some random home movies.