Walmart offers the Seiki 50" 4K2K 2160p LED LCD HD Television, model no. SE50UY04, for $429 with free shipping. (Amazon offers it for for the same.) That's tied with our mention from last week as the lowest total price we've seen for this TV. (It's also a current price low by $151.) It features a 3840x2160 resolution — four times that of 1080p TVs. It also has a 120Hz refresh rate, LED backlight, and three HDMI ports.