Walmart offers the refurbished Vizio M-Series SmartCast 64.5" 4K 2160p HDR LED-Backlit LCD Ultra HD Smart Television, model no. M65-D0, for $899.99 with free shipping. That's $398 under the lowest price we could find for a new one, although we saw a refurb for $50 less a month ago. It features a 3840x2160 (4K, 2160p) native resolution, 4K upscaling, Google Cast (with access to Netflix, Hulu Plus, Amazon Video, and more), five HDMI inputs, 6" Android tablet remote, and Vizio SmartCast capability, which allows you to use your smartphone as a remote via the SmartCast app.

A 90-day warranty applies, but it is unclear who backs it.