i was thinking of getting a gift for my parents summer home of an appletv. they dont have internet there as dont spend enough time, but think would be useful to have appletv to be apple to view movies and other stuff on their laptop on the tv. is it possible to set up the appletv to recieve movies, music... via wifi without having an intenet connection at the time. if so what else is needed and how do i do this. many thanks