Product Features 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. 42-1/50" screen size:Measured diagonally from corner to corner ensures a great view wherever you sit. 1080p display:Provides the highest quality progressive-scan picture possible from a high-definition source. 16:9 widescreen aspect ratio:With 4 zoom/display formats and 3:2 pulldown delivers a cinema-style entertainment experience. High brightness (500 cd/m²) and incredible contrast (1500:1 native, 6000:1 dynamic):For an arresting viewing experience. Wide 178° horizontal viewing angle:Makes every seat the best in the house. 3D Y/C digital comb filter:Delivers state-of-the-art detail and color enhancement. Ultrafast 6-1/2 ms response time:For improved fast-motion image processing. Sound system:2 built-in 10W stereo speakers with ST simulated surround sound for a rich audio experience. Ultraslim design:Ideal for wall mounting (with optional mounting kit, not included). VESA compatible. PC video input:Lets you connect your computer to experience high-resolution images. 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 3 HDMI, 2 component video, 2 S-video, 2 composite video, 1 RF and 1 PC. Outputs:Include 1 optical digital audio, 1 audio and 1 headphone jack. V-Chip parental controls:Give you the option of blocking undesirable material. ENERGY STAR qualified:Assures a high standard of energy efficiency. Additional features:Include closed captioning, sleep timer and channel labeling.