I suppose you could connect the Apple TV to your home network with a LAN cable...then have your PC wired to the same network...this would allow you to download movies, Netflix and YouTube from the internet to the Apple TV and also to play music from iTunes on your PC....but one of the things I really like about my new Apple TV is the interaction with iOS devices...it is great to mirror the desktop from an iPad 2, it is great to show pictures etc. from the same iPad...I think you'd miss a lot if you didn't enable wi-fi...it seems like you could setup a wi-fi access point in your home for a very modest cost, and just connect the downlink from the wi-fi network to the hub of your cable modem...or your ISP might have an integrated wi-fi system you can purchase...when you setup wi-fi on Apple TV, you just need to know the name(SSID) of the wi-fi network and any password you might have..it works great. The instruction book, though tiny, does a pretty good job of explaining stuff