Forgive a poor noob here, but while these color-regrades sound like a great idea in principle, wouldn’t it just be easier to lower the saturation and/or yellow balance on your TV and achieve pretty much the same correction effect a lot easier?
I mean sure, a colorized black and white movie can be “fixed” by turning the saturation to zero as well but that doesn’t mean you can’t create a true grayscale version, but am I way off on this?