Close an App on 4th or 5th Generation Apple TVs
Locate the TV/Home button on the Apple TV remote, represented as a TV set, or a rectangle with a line underneath. Click the Home button. If you’re taken back to the grid of apps, you’ve successfully closed the problematic app. It’s now paused in the background; if you closed a video app, the sound should stop.
Close an App on 3rd Generation Apple TVs
To close an app and return to the main menu on a 3rd generation Apple TV, press and hold the Menu button on the Apple TV remote that came with your device.
How to Force-Close an App on Apple TV
You may need to force-quit an app if it’s not responding. Perform this action from anywhere on the Apple TV, whether you’re in an app or on the main screen:
Double-click the Home button to bring up the app switcher. If you’re in the app, it will be first. Otherwise, swipe right until the app is present. Swipe up and the app will disappear to the top. Click the Home button to return to the main screen.
How to Close an App Using the Apple TV Remote App
The Apple TV Remote found in the Control Center on your iPhone can also be used to perform all the tasks mentioned here. The software mimics the look of the physical remote, so the virtual buttons function in the same way.
How to Restart Apple TV
If you tried to force-quit an app but it isn’t quitting, or the app switcher isn’t appearing, restart your Apple TV. Go to Settings > System > Restart to immediately restart the device.
Alternatively, if the Apple TV is frozen and won’t respond to any inputs, unplug the power cable from the back, wait a few seconds, and plug it back in.