Best Buy offers the Vizio 50" 4K 2160p WiFi LED-Backlit LCD Ultra HD Smart Television, model no. P50-C1, for $899.99 with free shipping. That's $100 off list and the lowest total price we could find. It features a native resolution of 3840x2160, LED backlight, 120Hz refresh rate, WiFi, USB, and five HDMI inputs. It includes a 6" FHD Android tablet remote with a wireless charging dock, linked to the Vizio SmartCast app.
Don't need a new one? Best Buy via eBay offers open-box models from $809.99.