On BestBuy.com where they are offering this highly-rated 海信70英寸LED智能电视
Hisense 70″ LED 4K Android Smart TV for just $499.99 shipped (regularly $649.99)!

This Smart TV features 4K Ultra HD resolution, a 70″ screen, and comprehensive content, including more than 5,000 apps and games! The built-in Chromecast works with a compatible iPhone, iPad, Android phone, Android tablet, MacBook, Windows laptop, or Chromebook; and allows you to cast photos, videos, and music from your smartphone to your television. You can also use Bluetooth to wirelessly connect a compatible soundbar, headphone, or stereo to your television.
It also has a built-in Google Assistant which can be used to turn on the lights, change the thermostat, add an item to your grocery list, or play your favorite YouTube video. Use the included voice remote to easily open or search for apps, control the volume and inputs, or search for your favorite TV shows.