This may seem obvious to many of you, but I can't figure it out. If I try to play a tv show that I have on my iMac on the ATV2, how does it get to Apple tv? Does it go straight from the comp to ATV, or does it go through the internet along the way? The reason I ask is that I am pretty disappointed with ATV speeds. It takes forever to load content from my computer and I need to know if it is just a problem with my isp, or if it is something else. Thanks in advance.