Sam's Club offers its members the Hisense 64.6" 4K 2160p HDR LED-Backlit LCD Ultra HD Roku Smart Television, model no. 65R6D, for $598 with free shipping. (Non-members pay an extra $59.80, so it's best to instead buy a membership for $45.) That's the lowest price we could find by $152 and the best deal we've seen on any Hisense 65" TV. (It's also the second-cheapest 65" Roku 4K TV we've seen.) It features a 3840x2160 (4K, 2160p) native resolution, LED backlight, WiFi, Roku media streaming (including Netflix and Hulu), USB input, and three HDMI inputs.