Westinghouse LTV-27W2 27" Widescreen Progressive-Scan LCD TV 27 viewable screen 16.7 million color display Compatible with 480i, 480p, 720p, 1080i, PC(1280x720 optimum) Native Resolution - 1280 x 720 (optimum) Aspect ratio - 16 - 9, adjusts to 4 - 3