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. 50" screen size:Measured diagonally from corner to corner is ideal for large rooms. 1080p display:Provides the highest quality progressive-scan picture possible from a high-definition source. 16:9 widescreen aspect ratio:Plus 3:2 pulldown for accurate reproduction of film-based sources. High brightness (1,300 cd/m²) and incredible contrast (30,000:1):For a stunning viewing experience. 3D Y/C digital comb filter:Delivers state-of-the-art detail and color enhancement. Media Card reader:Supports Secure Digital, MultiMediaCard and xD-Picture card formats for easy transfer of images from your camera or camcorder. 20W built-in speakers with auto volume leveler:Prevents volume fluctuations during commercials so you do not need to adjust the volume settings. Ultraslim design:Ideal for wall mounting (with optional mounting kit, not included). VESA compatible. USB 2.0 port:For quick connection of a digital camera or other USB device. 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 rear, 1 side), 2 S-video (1 rear, 1 side), 1 PC (rear), 2 component video (rear), 2 composite (1 rear, 1 side) and 1 RF antenna. Outputs:Include 1 optical digital audio, 1 A/V and 1 headphone. V-Chip parental controls:Give you the option of blocking undesirable material. Useful additional features:Include closed captioning, channel labeling, sleep timer and auto zoom.