Having previously used Aperture to view my Photo's through the Apple TV via Home Sharing, I moved my collection over to Photo's. Previously if I added or made any changes to my Photos in Aperture this was almost instantly reflected on Apple TV (I suspect the same was true of iPhoto). Not so with Photos, I left it two days and none of the new photos I added or changes came through. To get it to work I had to turn off Home Sharing in iTunes and then turn on again. This feels like a backward step, unless someone knows a better work around to fix the issue?