I have an older toshiba, so I don't know if things have changed, since I'm not a professional calibrator. But in the old 42rv530u days (purchased feb 2008), only perefrence could be calibrated at all.
The service grayscale settings where per input, the service settigns for contrast, ect.. where per resolution, and the modes simply overlayed on the those.
Things may have changed though.
CalMAN Lead Developer