Walmart continues to offer the Proscan 55" 4K 2160p LED-Backlit LCD Ultra HD Television for $299.99 with free shipping. That's tied with our mention from a week ago and among the least expensive new 55" 4K UHD TVs we've ever seen. (It's the best deal now by $68.) It features a 3840x2160 (2160p) native resolution, USB, and three HDMI inputs.
Walmart offers the Proscan 50" 4K LED-Backlit LCD UHD Television for $269.99. Opt for in-store pickup to avoid the $45 shipping fee. That's the lowest price we could find by $90. It features a 3840x2160 (4K, 2160p) native resolution, 4K upscaling, and four HDMI inputs.