Walmart offers the Hisense 50" 4K LED LCD Ultra HD Television
, model no. 50H7GB1, for $548
with free shipping
. That's $102 off the list price we could find. It features a native resolution of 3840x2160p (2160p), LED dimming, WiFi, Smart TV apps (YouTube, Netflix, Vudu, etc.), three USB ports, and four HDMI ports.