Not a TV-based thing, but kinda related: do a search for SCATT here on the forum. I've never used it, but my understanding is it's good for NPA, trigger pull, breath-rest, etc.
SCATT seems more like glorified electronic target. Tv system like the last one can be set up like a steel shoot etc and uses laser cartridge and laptop with camera.
If you're having second thoughts you're two ahead of most Democrats