I've been looking at a bunch of guides to upgrading the AppleTV's hard drive and all seem to upgrade to 120GB, the model from Apple is 160GB. Is there a limit to the hard drive size in AppleTV or is it only limited by the hard drives available?
I've heard of people putting in a 500GB drive. I wouldn't touch mine though. Replacing the HDD requires removing the rubber bottom which can easily rip leaving you with a scarred TV. 160GB is just fine until the next major hardware revision.