The 4th Generation of the Apple TV supports installing apps. And part of playing around with new apps is sometimes you’re not going to want them on your TV any more. To remove apps, the process is similar to that of an iPad. Highlight an app that you’d like to remove and then hold down the clicker on the app.
The app will go a little larger. Click on it again and you’ll get the option to Delete the app.
Click Delete and the app disappears.
That’s it. The app, and any storage that is being consumed by the app, is then freed up.