HDTVTest says the PS3 has advantages over the PS4 on DVD and Blu-ray playback: should you care? Playbar: we review the not quite wireless sound bar from SONOS. The physics behind animating the snow in Frozen? They're epic! If grayscale isn't right, your colors are wrong, we show you how to fix that. There's a new dual OTA tuner coming, the Channel Master DVR+.