Last week LG put out there 4K 84-Inch TV that dose 3D and has smart TV features. Sony introduced there 4K TV yesterday, and is almost old news but the price has been more closely figured out, The Verge has found this TV to be around $20,000.
This TV dose 3D at a resolution of 3840 x 2160, Resolution Upscaler Plus, Magic Remote to use with 1,400 apps for their Smart TV. It also has a 2.2 speaker system with 2 10W speakers and 2 15W woofers. It will be available in North America, Europe, Asia, and Latin America in September.