It may take a bit longer than usual to launch your desired program due to the fact that Apple TV needs to identify the app you've selected to view your content on. This includes quite a bit of moving parts including the Caavo companion app helping with the search for your desired content. During this time you will see navigation happening in the background behind the buffer screen.
You can help speed up that process by moving the affected app to the top row of your AppleTV's home screen.
- Using the AppleTV remote, press and hold on the app to go into wiggle mode. You can then drag the app to the top row.