Walmart offers the refurbished Samsung 60" 4K 2160p HDR LED-Backlit LCD Ultra HD Smart Television, model no. UN60KU630DFXZA, for $579. Choose in-store pickup to avoid the $49.97 shipping fee. That's tied with last week's mention as the lowest price we could find for a refurb by $120 and $621 under the best deal for a new one. It features a 3840x2160 (4K, 2160p) native resolution, high dynamic range, 802.11ac wireless, Smart Hub (with access to Netflix, Pandora, Hulu, etc.), two USB ports, and three HDMI ports.
Note: No warranty info is provided.