Hello I am looking at buying my movies from iTunes now that they've gone to 1080p. I'm looking at movies in iTunes and it says it is in 1080p but also says it's in 720p and SD. For example on one movie: "5.52 GB (720p HD), 2.32 GB (SD). HD includes: 1080p, 720p. (Downloading 720p)." What my question really is here is what do I actually get when I buy it and download the movie. I assume I get an SD version plus an HD version. When I buy it do I just get a 720p or do I get both 720p and 1080p. I would be using this for mainly watching movies via my Apple TV. Thanks.