Walmart offers the Proscan 55" 4K 2160p LED-Backlit LCD Ultra HD Television, model no. PLDED5515A, for $299.99 with free shipping. That's $80 under our mention from last August and among the least expensive new 55" 4K UHD TVs we've ever seen. (It's the best deal for this model now by $50.) It features a 3840x2160 (2160p) native resolution, USB, and four HDMI inputs.