Spitballing again... but before I spent any money, I'd experiment with just about any cheap TV but
purchase various cloth swatches Go on amazon and look for black
gauze, and or black
tulle. Can try either surface applying to the
monitor itself, or if you have a really good non glare
monitor, could video the subject behind the "
scrim" Could also try a lightly frosted vinyl window film.
They may help you kill any surface shine, but also give the
effect some depth and
canvas texture. I also would force your video feed just slightly out of focus. Too crisp will just look like video. Sounds like fun