Im trying to find a device that moves my comcast xfinity free movies from my imac over to my tv.Im not interested in purchasing films because of my economic status and i have the most basic tier with only local channels from comcast.I noticed that in my Xfinity account there are lots of movies offered free to watch on my Imac but I cant view them on my samsung 55 8500 tv.Im looking for a device that will wirelessly send these movies from my Imac over to the tv .Wondered if Apple tv would do this for me? thanks