Walmart offers the refurbished
Sharp 55" 4K 2160p WiFi LED-Backlit LCD Ultra Smart HD Television, model no. LC-55UB30, for
$529.99 with
free shipping. That's $470 off list and the lowest total price we could find. It features a 3840x2160 (2160p) native resolution, LED backlight, Smart TV apps, USB, and four HDMI inputs.
Note: No warranty info is provided.