Since first seeing it yesterday, we've gotten to spend a little more time with Sony's 4K OLED TV prototype, possibly the best-looking screen you're going to find at CES. The 56-inch TV merges this year's two high-end TV formats with a super high-definition screen and the gorgeous colors of OLED, though while both 4K and OLED TVs are now coming to consumers, this combination is still in an experimental stage. Interestingly, Sony isn't the only one to announce a prototype this year — Panasonic has just unveiled its own 56-inch 4K OLED competitor, which we haven't yet had a chance to examine in detail. Either OLED or 4K can push a TV over $10,000, so if this does come to market, expect it to be out of the price range of just about everyone for some time.