A properly calibrated TV/Projector can reveal all of the subtle details HDR content can provide.

If you thought Game of Thrones was just a black screen with audio, you need calibration.

If people always fall asleep when watching movies at your home, you need calibration.

If you have trouble seeing your enemy when playing the latest video games, you need calibration.

If you want to truly experience the movie as the director intended, you need calibration.