Walmart offers the Samsung 54.6" 4K Curved HDR LED-Backlit LCD Ultra HD Smart Television, model no. UN55MU6490FXZA, for $597.99 with free shipping. (Amazon, B&H Photo Video, and Best Buy all have it for about the same price.) That's $52 under our mention of a similar TV from two weeks ago and the lowest price we could find today by $100.

It features a 3840x2160 (4K, 2160p) native resolution, 4K HDR Pro, 4K upscaling, 802.11ac wireless, Smart Hub (with access to Netflix, Amazon Instant Video, Hulu, etc.), USB, and three HDMI inputs.