This Vizio 42" LED LCD HDTV features full 1080p high-definition resolution with Razor LED backlighting for brilliant color and contrast in a razor thin design that?s less than 0.87" thin (max depth 1.85"). This sleek HDTV delivers superior audio using SRS TruVolume and SRS TruSurround HD audio for advanced virtual surround sound and has 4 HDMI ports to connect up to 4 HDMI devices to your HDTV. This HDTV exceeds Energy Star 4.0 guidelines to reduce energy consumption and has built-in ambient light sensing technology that automatically adjusts backlight levels to the brightness of its surroundings.