Walmart offers the RCA 50" 4K Flat LED Ultra HD Television, model no. RLDED5098-UHD, for $219.99 with free shipping. That's $10 under last week's mention and tied as the lowest price we've seen for a new 50" 4K TV. (It's the lowest price for this model now by $119.) It features a 3840x2160 (4K, 2160p) native resolution and four HDMI inputs.