The AppleTV is intended to work as an always-connected device, so apps can reasonably be expected to download the assets as they are needed.<p>iOS9 adds the on demand resources feature that does exactly that.<p>According to <a href="https:&#x2F;&#x2F;developer.apple.com&#x2F;library&#x2F;prerelease&#x2F;ios&#x2F;documentation&#x2F;FileManagement&#x2F;Conceptual&#x2F;On_Demand_Resources_Guide&#x2F;PlatformSizesforOn-DemandResources.html#&#x2F;&#x2F;apple_ref&#x2F;doc&#x2F;uid&#x2F;TP40015083-CH23-SW1" rel="nofollow">https:&#x2F;&#x2F;developer.apple.com&#x2F;library&#x2F;prerelease&#x2F;ios&#x2F;documenta...</a> you can have 2GB of resources in use at once, for a total of 20GB overall.