Product Features 54-3/5" screen measured diagonally from corner to corner:For enjoyable viewing of the big game. 1080p display:Provides the highest quality progressive-scan picture possible from a high-definition source. Built-in HDTV tuner:Add HD-capable antenna to receive over-the-air high-definition broadcasts, where available. Optional set-top box required for high-definition cable or satellite programming. ENERGY STAR qualified:Designed to use less energy and meets strict energy efficiency guidelines set by the Environmental Protection Agency and U.S. Department of Energy. PC video input:Lets you connect your computer to experience high-resolution images. 5 HDMI inputs:Provide an uncompressed all-digital audio/video link for the highest quality connection, and they support copy-protected HD broadcast content. Inputs:Include 2 composite video (1 side, 1 rear), 2 S-video (1 side, 1 rear), 2 component video (rear), 5 HDMI (2 side, 3 rear), 1 PC (side) and 1 RF (rear). Outputs:Include 1 headphone (side), 1 audio (rear) and 1 optical digital audio (rear). 16:9 widescreen aspect ratio:Delivers a cinema-style entertainment experience. 3:2 inverse pulldown:For accurate reproduction of film-based sources. High brightness (500 cd/m²) and 4000:1 native contrast ratio (15,000:1 dynamic):For an arresting viewing experience. Wide 176° horizontal and vertical viewing angles:Make every seat the best in the house. 3D Y/C digital comb filter:Delivers state-of-the-art detail and color enhancement. Ultraslim design (5" deep):Ideal for wall mounting (with optional mounting kit, not included). VESA compatible. Two 15W stereo speakers:With Audyssey Dynamic Volume and SRS TruSurround HD provide a lush soundscape. V-Chip parental controls:Give you the option of blocking undesirable material that you don't want your kids to see. Handy additional features:Include trilingual (English, French, Spanish) menus, closed captioning, sleep timer and channel labeling.