Walmart offers the Vizio 55" 4K 2160p LED-Backlit LCD UHD Smart TV, model no. M55-C2, for $848 with free shipping. That's $100 under our June mention (which included a $300 Dell gift card) and the best outright price we've seen. (It's a current price low by $27.) It features a 3840x2160 resolution (four times that of 1080p), 120Hz refresh rate, WiFi, Internet Apps (Netflix, Hulu Plus, Amazon Video, more), and five HDMI ports.