Walmart offers the refurbished Vizio 55" 4K 2160p LED-Backlit LCD Ultra HD Smart TV, model no. M55-C2, for $549.99 with free shipping. That's $30 under our mention from yesterday and the lowest total price we've seen. (It's also $248 below the best price we could find for a new one.) 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.

Note: No warranty information is provided.