Apple TV a Wireless repeater/bridge?

I'm considering getting an Apple TV when I move in a few months. I found one article mentioning that you can't connect to the internet with the ethernet port. Does this mean I can't use it as a wireless repeater/booster/access point too? I was considering having the Airport base station upstairs with the non-airport printer and using the Apple TV for what it was designed but also a access point/repeater for the downstairs. Is this possible?