Video Player Prefabs
The default prefab is "Sync Video Player"
Additional prefabs are broken out in the following folders:
Audio Groups Preconfigured audio profiles
Component Optional components like playback zones, playlists, URL remappers, etc.
Other Video Players Other configurations of the Sync Video Player and Local Video Players
UI UI control objects
Video Sources Preconfigured video sources
Adding Prefabs to Scene
The recommended way to add prefabs to your scene is to use the GameObject->TXL menu.
Video player prefabs added through this menu save a couple extra steps. And if any part of a video player hierarchy is selected, most of the menu items to add components, UI, sources, etc. become context-aware and will automatically wire themselves up to the selected video player.