Checkout this video:
Go to home screen
To delete an app, press and hold the Touch surface of the Siri Remote (either side) until the app jiggles. Press the Play/Pause button, then press Delete.
Select the Settings icon.
If you need to free up some space on apple tv you can delete apps directly from the device. Here’s how:
-Select the Settings icon.
-Scroll down and select Apps.
-Select the app you want to delete.
With apple tv remote highlight the app you want to delete. Select and hold (press and hold) the Touch surface until the app jiggles. Select Delete.
1.Using the Siri Remote, touch the touches the Home button to go to the Home screen.
2.On the Home screen, select Settings.
6.Under Applications, select an app that you want to delete.
7.Touch and hold the Touch surface on the Siri Remote until the app jiggles, then press the Play/Pause button .
8.When asked if you want to delete the app, select Delete App.
Select the application you want to delete.
Using apple tv remote navigate to the icon of the app you want to delete. Once selected, hold down the Touch surface until the app jiggles. If you have an older model Apple TV, press and hold the Play/Pause button on the remote. Tap the X that appears in the upper left corner of the app icon to delete it.
To delete an app on your Apple TV, open the app and press and hold the Touch surface on your remote. When the app jiggles, select Delete.