RCA ATSC11 High Definition Tuner High-definition tuner with selectable output modes: 480i/p, 720p, or 1080i Digital onscreen program guide keeps you abreast of high-definition broadcasts V-Chip parental control restricts viewing for young audiences Dolby Digital 5.1-channel surround passthrough (optical and coaxial jacks) for immersive, powerful audio presentations includes DVI direct digital output and a universal IR remote control