Walmart offers the LG 49" 4K 2160p 120Hz LED-Backlit LCD Ultra HD Television
, model no. 49UF6700, for $547.99
with free shipping
. That's $2 under our mention from five days ago and the lowest total price we've seen. (It's also a current price low by $450.) It features a 3840x2160 (four times that of 1080p TVs) native resolution, 120Hz refresh rate, USB, two HDMI inputs.