Snooping around in the Service Menu is highly discouraged because that can be a quick way to brick your tv or seriously mess it up. It also voids your warranty if you break something. The commands can vary a bit from build date, firmware version, etc so what works on one may not work correctly on another. The internal calibration commands are different from the external (user accessible) calibration settings that one normally uses to calibrate the panel. Good luck and be careful.