I have 3 Apple TVs in various area of my house, I Have Airparrot as well on my laptop. I am having a function and wish to simultanously stream to each Apple TV from my computer. I also have an Airport Express and Extreme. The Apple TVs are hard wired on the network. Any suggestions. 1 of the Apple TV's run a projector in my backyard to an 8 metre screen at the back of my pool. That Apple TV is wireless