VIP Outlet via Walmart offers the refurbished Vizio SmartCast 50" 4K 2160p LED-Backlit LCD Ultra HD Smart Display, model no. E50x-E1 for $279.99 with free shipping. That's tied with our expired mention from three days ago as the lowest price we've seen for this TV in any condition. (It's also $168 under the best price we could find for a new one.) It features a native resolution of 3840x2160 (2160p), Smart TV apps, and four HDMI inputs.

Note: A 90-day warranty applies, but it's unclear who backs it.