I am interested in getting an Apple TV for occasional movie watching, but 90% of the time it would just be functioning in the same role as my Airport Express is — providing me the ability to play music through my home speaker system. My music is made up of mp3s, tracks bought on iTunes, and tracks streamed through Apple Music. Does anyone know if Apple TV provides the ability to send these stereo sources signals to multiple speakers in a home theater setup? Many Dolby devices have the ability to convert stereo sources to multichannel (Dolby ProLogic) audio in order to utilize the additional speakers of a home theater system. Any info on what the Apple TV might include in terms of these kinds of abilities would be greatly appreciated.