Hello, I am interested in buying the current AppleTV, but there are a couple of things I need to know that a web search doesn't tell me. Does AppleTV automatically sign out of PhotoStream after a certain period or will it stay logged in all the time? Will PhotoStream automatically log out if a second user rents or buys something in the iTunes Store under their own Apple ID? Or are the iTunes Store and PhotoStream sections seperate? Also, is it possible to hide previous purchases on AppleTV? Is hiding them in iTunes on a Mac sufficient - those that take effect when you sync the two? Regards.