Walmart offers the Sceptre 54.6" 4K Flat LED Ultra HD Television, model no. U550CV-U, for $249.99 with free shipping. That's tied with last month's mention as the best price we've seen, and it's a low by $27. (It's also the second-best price we've seen for any new 55" 4K TV.) It features a 3840x2160 (4K) native resolution, USB 2.0, and four HDMI inputs.