DataColor

Datacolor makes video calibration devices such as the Spyder which can reportedly auto-calibrate your video display device.
Datacolor is one of the global leaders in color management and color communication techologies. Swiss owned (but based in the US), Datacolor has been in business for over 40 years.

Notable DataColor products include:
Datacolor SpyderTV
Datacolor Spyder3 Studio SR
HomeTheaterReview has a preview of the DataColor Spyder3HDMI auto-calibration device and a review of the DataColor SpyderTV.