Walmart continues to offer the Vizio 54.6" 4K 2160p LED-Backlit Ultra HD Smart Television, model no. D55-E0, for $398 with free shipping. That's tied with our mention from a month ago and the lowest price we could find now by $102. It features a 3840x2160 native resolution, 802.11ac wireless, Smart apps (with access to Netflix, VUDU, YouTube, more), and USB and four HDMI inputs.