There are a lot of different smart TV operating systems out there, and Fire TV is one of the big ones. You can buy a TV with the OS already installed or a Fire TV stick to give your regular TV the capabilities.
You can use a Fire TV Stick
While you can buy a TV with the Fire OS installed, a lot of people opt to buy a Fire TV Stick. This is a streaming dongle that can turn your ordinary TV into a smart TV. All that you need to do is plug the dongle into the HDMI port. The Fire OS lives on the dongle, and it transfers the data to your TV. While a full TV will cost you hundreds, the Stick typically costs less than $50. Depending on the model you get, you’ll be able to stream 4K content.