For its members only, Costco offers the Samsung 55" 4K 2160p Ultra HD LED-Backlit LCD Smart Television, model no. UN55KU630DFXZA, for $549.99 with free shipping. That's the lowest total price we could find by $244. It features 3840x2160 native resolution (2160p), Smart TV apps (Netflix, YouTube, etc.), USB, and three HDMI inputs.