While supplies last, get a refurbished Vizio 55" 4K Smart TV (model: D55U-D1) for $479.99 at Walmart.com. Plus, the shipping is free. This is the lowest price we could find for this TV by $130. It features a 120Hz refresh rate, built-in WiFi and Smart TV apps, five HDMI ports, 14 active LED zones for even contrast levels, and more. Sales tax is charged in most states.