The Google Analytics (GA) tracker ID put into the 'labs' section of the publisher web interface must be a mobile tracker and MUST NOT be the same tracker ID that is used in other mobile apps.
The following metrics are collected on all devices (tvOS, Roku etc) unless otherwise noted.
Home: Optional home menu screen
Browse: Browse screen
Loading: Screen shown as app is starting
Media: Screen used to track interactions while playing a video back, live stream or VOD
Please visit this spreadsheet to view all the events