4K? Pah, Toshiba's already working on something, you know, one better. One of our eagle-eyed readers sent in this picture of a "5K" extra-wide UHD TV on the show floor. Of course, like LG's 5K model, this is really just a 4K TV with a thousand extra pixels tacked on at the edges, but the plain technical facts shouldn't detract from this spectacular work of corporate one-upmanship. Naturally, we'll probably find out more about this hardware in a day or so, but until then, we'll just have to gaze upon this slightly blurry shot and wonder.