Just came upon this website [lemall.com]
The 55 inch tv looks pretty good. It comes with 3D glasses and motion sensor.
Full Spec here [lemall.com]
The TV will be available on Dec 8, 2015 for $799. It can be purchased for $479 if you get an invite code on Dec 7, 2015 after you register [lemall.com]
P.S. Lemall is a company under letv.com. It's a public trading company [marketwatch.com]
in China, so this promotion should be legit.