Can you use a wireless or bluetooth keyboard with AppleTV
I would like to use some sort of keyboard for data entry and websurfing. Is this possible
No. It does not have a web browser in it, so you cannot use it for web surfing anyway. There is very little data entry to do, about the only time you need a keyboard is when putting in a wireless passcode or searching for a movie. You can use the Remote app from Apple on an iPhone, iPod touch, or iPad, which will bring up the keyboard on that device when you are in a text field on the Apple TV.