For pickup only, with stock very limited by ZIP code, Walmart offers the LG 55" 4K 2160p LED-Backlit LCD Ultra HD Smart Television
, model no. 55UF6450, for $523
. That's $77 under our February mention and the lowest price we could find today by $177. It features a 3840x2160 (4K) native resolution, webOS 2.0 Smart TV system, USB, and three HDMI inputs.