A free app for Android, by Felipe Leon.
You can now watch all of your favorite Twitch channels on your Android TV with the Twitch client for Android TV. This app is designed to work in the same manner as the Twitch app, so you can use it on any device that is capable of running the Android OS.
The main difference between the Twitch client for Android TV and other similar apps is that it is capable of showing you the video in the Picture-in-Picture (PiP) mode. In other words, it is possible to watch your favorite stream while doing something else, such as working or studying.
When you are watching a stream, you can use the app to change the streamer's chat or video size. You can also use the app to set the position of the video on the screen, and to switch between multiple streams at the same time.
You can also use the app to change the font size and color of the streamer's name and message.
The Twitch client for Android TV is also capable of showing you the current and average streamer rating.