Certain TV manufacturers have a relationship with the Imaging Science Foundation, one of the leading companies that offers training for calibrators. TVs from these companies have specific calibration-friendly picture modes, such as ISF-Day and ISF-Night. These allow different settings depending on the amount of light expected in the room, making sure the TV looks its best regardless of the time of day. Other TVs might offer day and night modes as well, without the ISF connection. Again, this is all something to discuss with your calibrator.
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