said by vpoko:
There's no way to know what kind of device is connecting to your website unless it tells you. I'm sure it would be trivial to hack the Google TV to make it pretend that it's Internet Explorer running on a Windows PC.
But then they can counter with, "Oh this is IE, mind installing this activex that will make your experience so much better. Oh you can't, well so sorry, do come back when it works"