jordan the tvos16 wasn't ok with a tv?
I only have a projector, but tvOS 16 was good/comfortable whereas tvOS 17 was bad/uncomfortable.
Regarding the RGB Low/High versus YCbCr, I did mess with those settings (and others) while trying to fix the strain with tvOS 17, but I wasn’t successful. In any case, I believe I was already on the recommended setting for a TV/projector at the time.