Walmart offers the Sceptre 64.5" 4K LED-Backlit LCD Ultra HD Television, model no. U650CV-U, for $539.99 with free shipping. That's tied with our mention from two weeks ago and the lowest price we could find by $130, although we saw it for $40 less three weeks ago. It features a 3840x2160 native resolution, USB, and four HDMI inputs.