THX display certification sets this series apart. 50" PDP 1080P HDTV, 1920 x 1080 Resolution, THX Display Certified, 600Hz Sub Field Driving, 2,000,000:1 Dynamic Contrast Ratio, 1,500 cd/m2 Brightness, ATSC/NTSC/Clear QAM - 1 Tuner, Dual XD Engine, SRS TruSurround XT, 4 HDMI input