Electronic Express via Rakuten offers the TCL 55" 4K 2160p WiFi LED-Backlit LCD Ultra HD Roku Smart Television, model no. 55S405, for $399.99. Coupon code "SAVE15" cuts it to $339.99. With free shipping, that's the lowest price we could find by $149, although we saw it for $20 less last month. It features a 3840x2160 (2160p) native resolution, content streaming via Roku TV (including Netflix, Youtube, and Hulu Plus), 802.11ac wireless, USB, and three HDMI inputs.

This coupon can only be used once per account. (You must be signed in to use it.)