I've had my Apple TV for a few weeks now and really enjoy it as a Netflix/YouTube player. Since I've had it though, I have never been able to play a video from my iTunes Library on my television. When I go to the Computers menu in the ATV it tells me to turn on Home Sharing (which I have on both devices) and when I pull up a video on AirPlay it only gives "My Computer" as an option. I'm a college student using their network, so I'm wondering if that might be the issue. Any ideas?