Best Buy offers the Sharp 55" 4K LED-Backlit LCD Ultra HD Smart Television, model no. LC-55LBU591U, for $299.99 with free shipping. That's $150 off list, $100 under our June mention, and the lowest price we've seen. It features a:
3840x2160 (4K) native resolution
Roku content streaming (Netflix, YouTube, Pandora, and more)
USB and three HDMI inputs
30-day Sling TV Live Streaming Service Subscription
With these companies, it might be easier than you think to negotiate your monthly bill down.