The 55-inch set have incredibly high contrast and response rates, unbelievable 1,000,000,000:1 600MHz. There's also an ambient light sensor that, by automatically dimming the backlight, can save up to 60-percent of the energy the HDTVs normally use.
It has four HDMI inputs, it has a USB port that can be used to play audio, image and video files (including WMV and DivX) directly from a memory stick or external hard-drive. It integrates the display panel and speakers into one, 76.8mm-thick package.