LGs Exclusive XD EngineSix distinct processes contribute to picture improvement. LGs XD Engine takes the low resolution of analog signals to near HD levels by improving brightness, contrast, detail and enhancing color as well as reducing signal noise. This total solution results in cinema like high resolution images.Color Wheel with Air BearingIncreased reliability over conventional ball bearing.color wheels.Advanced ConnectivityIncludes inputs for the most advanced components and allows simultaneous PC interactivity while watching your favorite TV programming.