If you want to watch a streaming service from your TV, you’ll need a TV that’s connected to the internet. This is called a smart TV. Some smart TVs come with streaming apps already installed (though not free to use without a subscription). If you don’t want to buy a whole new TV, you can also buy a streaming device that essentially converts your TV into a smart TV by allowing it to connect to the internet. The most popular of these add-ons are the Roku, Amazon Fire TV Stick, and Google Chromecast.