I do not currently have an Apple TV but I am very interested in the upcoming new version of it so I have a few questions that might seem stupid but I really dont know a thing about this stuff. Can I move this device from TV to TV around the house and if so, how difficult is it to do? I thought a HDMI cable carried both video and sound, so what is the optical audio connect on the back for? Will this device work with any router? (I have a Netgear WDN3700) Will this device stream from movies directly from iTunes on a PC? I dont have a Mac. What other things should a completely novice person be made aware of? THANKS!