being late to this discussion, I have a smart playlist that has Last Played date as a filter. so currently the data is set to 12/31/17. I have an iPod, iPhone, and an Apple TV that i can play my itunes music. When Im playing music on my iPod (in the car), I can synce with itunes and there the songs are update. If Im playing my music through my Apple TV this doesnt sync with itunes.