You can YouTube TV to your TV using the following streaming boxes. You can use the below streaming boxes or can download YouTube TV app on TV ( Samsung, LG ) or stream using mobile device or computer.

Streaming boxes

Apple TV
Roku
Chromecast
Android TV
Xbox Console

Smart TVs

Samsung smart TVs ( 2016 and newer models) using youtube tv app
LG smart TVs (2016 models and newer) using youtube tv app

Laptop

You can go to tv.youtube.com and watch using browser

Smartphone/tablet

YouTube TV works on
Android L
iPhone ( iOS 9.1 or later )
iPad ( iOS 9.1 or later )