DESC: The Panasonic TC-23LX50 23 inch is HDTV Ready with a LCD screen that stretches your imagination. Enjoy high-quality videos and HDTV programs with its WXGA panel. The bright and vivid pictures in a conematic 16:9 wide screen with high-qulaity Stereo Surround Sound let's you enjoy other features such as C.A.T.S. (Contrast Automatic Tracking System) and picture-enhancing circuitry such as 3D Y/C Digital Comb Filter for improving picture quality. C.A.T.S. adjust the brightness to suit ambient light condition and optimizes contrast. This TC-23LX50 HDTV Monitor requires an external Tuner to display HDTV images in 720p and 1080i.