Hello. I just got an Apple TV and I have a question about movie/tv purchases. If I buy a movie (not rent) does the movie get downloaded to my computer and stored on my hard drive or does it stream? I'd like to make the move to get away from physical media but I don't want to purchase terabytes worth of storage or the movies I buy. I'd really like it if there was just a running list of the movies I purchased and when clicked, they would just stream, just like OnDemand cable services. Thanks.