Pioneer has been a top dog in rear-projection TVs (RPTV) for many years. The company's original Elite Pro Series of analog RPTVs have garnered much praise from the press and videophiles alike. Turning its back on analog RPTVs, Pioneer has introduced the new Elite Series PRO-510HD second-generation high-definition (HD) RPTV.The PRO-510HD is packed with features. The new "Film" color temperature mode replaces the "Warm" setting found in previous Pro Series models. Scan Velocity Modulation (SVM) improves picture definition by accelerating or decelerating the speed of the CRTs' electron beam as scenes shift from dark to bright. The PRO-510HD's incredible picture quality is mostly attributable to its excellent line doubler. This line doubler is solely a Pioneer effort, and the best of its kind from the mass-market TV manufacturers. The adjustable 3D-YC comb filter and 3D-Noise Reduction (NR) are also welcome features. These allow you to optimize the picture according the video source. Pioneer has incorporated a 72-point convergence system in the user interface, which helps you maintain a crisp, sharp picture. There are a few innovations on the audio side as well, including two forms of simulated surround sound. Also, a center channel input allows you to run a cable directly from your audio/video receiver or preamp/processor's center channel output to the TV so that you can use its built-in speakers as the center speaker in your home theater system. Elite PTV's are all 16 x 9 aspect ratio which is the high definition standard, but for flexibility with any programming type, you can choose your own preferred screen format with the multiple screen modes: Natural Wide, Cinema Wide, Zoom, 4:3 Normal and Full.