You need to calibrate each input on the TV where the players are connected. If TV does not "remember" settings for each input, then you have to compromise some how. Ideally you want to leave the players at "neutral" settings hoping they output what's on the disc instead of modifying the data. If the player is giving accurate data, then you calibrate the TV to match the input with test/calibration discs and such. And then you have the best chance of seeing what's on the disc as it was intended to be seen.
And the pantaloon duck, white gooseneck quacked: Webcor, Webcor