Consolidating itunes 11
This should prompt i Tunes to ask you if you really want to delete the files to the Trash. You will now have the option of enabling sharing from i Photo or any folder, including options for specific playlists and even sharing videos.
These will then be shared to any second or third generation Apple TV using Home Sharing.
Home Sharing gets around the problem of having to sync mobile devices to one i Tunes library at once by allowing you to share content between multiple libraries.
In i Tunes' FIle menu, go to the Home Sharing submenu and turn on Home Sharing, which will require you to authorise with your Apple ID.