Continuing a fine tradition of large, high resolution prototype displays, Samsung Electronics picked today to show off its latest innovation, in the form of the world's first 70-inch, "Ultra Definition" 240Hz 3DTV. That UD tag indicates a resolution of 3,840 x 2,160 pixels that puts your current HDTV and even larger projection 1080p 3D units to shame. The big deal in this version is the super high speed silicon Samsung has developed to drive all those pixels fast enough to support smooth motion and 3D viewing -- glasses still required, of course.