I'm thinking about buying the new Apple TV to make use of Airplay Mirroring. My new retina MBP will be in another room of the house. I'd like to be able to play a film using a 3rd party app (VLC, for example) and then walk over to the TV room and play it by mirroring -- but the key is that I want to be able to pause/start the film when necessary. Can this be done through Apple TV? Or do I need to have the MBP in the same room? In other words, if I want to stop and start films, am I limited to itunes on apple tv? Thanks!