Philips Single Panel LCOS technology Philips Single panel LCOS technology produces high resolution, flicker free video without a visible pixel grid. The reflective rear projection system enables a large screen size TV with low weight and small footprint without any concerns for convergence or burn-in. Digital Natural Motion Eliminates motion judder from film based sources such as DVD s for distortion free, natural viewing. Active Control Plus By continually adjusting picture settings over 60 times per second, Active Control Plus ensures that the viewing experience is always optimal. Changes in ambient light are even automatically compensated for. Double Window/Two-tuner PIP (Picture-In-Picture) SOUND QUALITY FEATURES- Virtual Dolby Surround processing Dolby processing circuitry for enhanced surround sound effect creates the sensation of Dolby Pro Logic without the hassle of additional rear speakers. Sound system: Hi-Fi Stereo Receives stereo broadcasts. Produces sound for performance through 4 speakers with an output of 2 x 20W RMS.