To do this
In iTunes, choose File > Home Sharing > Turn On Home Sharing.
Type your Apple ID and password, and click Turn On Home Sharing.
On Apple TV, choose Settings > Computers.
Choose Turn On Home Sharing, and then enter the same Apple ID and password ***** entered on your computer.
In iTunes, choose File > Home Sharing > Choose Photos to Share with Apple TV.
In the window that appears, select Share Photos From, and choose a source from the pop-up menu.
Choose “All photos, albums, events, and faces” or “Selected albums, events, and faces.”
If you chose “Selected albums, events, and faces,” select the albums, events, and faces you want to stream.
That then completes the process.
If you have any problems, or would like any additional information or assistance, please do not hesitate to let me know.
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