Walmart offers the refurbished Vizio SmartCast 55" 4K 2160p WiFi LED-Backlit LCD Ultra HD Home Theater Display, model no. E55-E1, for $359.99. Choose in-store pickup to avoid the $19.97 shipping fee. That's a $10 drop from two weeks ago and the best price we've seen. (It's a low by $79 for a new unit.) It features a native resolution of 3840x2160 (4K), Vizio SmartCast technology with integrated Google Cast, USB, and four HDMI inputs.

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