Philips 55PW9363 55" Widescreen HD-Ready TV 55-inch HD-ready projection TV; measures 52.6 x 57 x 25.6 inches (W x H x D) 16:9 aspect ratio; line doubling; upconversion of analog signal Dual-tuner picture-in-picture; 3-line digital comb filter HD DVI and component inputs, 3 S-video inputs (1 side), 3 composite A/V inputs (1 side), 1 A/V output, 1 standard component input, and a headphone jack Two 10-watt RMS stereo speakers; Dolby virtual surround sound