Be aware that most of this services only work with an US IP-Address. For example you can't use the US Apple TV abroad because it checks if your IP-Address is actually an US-Address. If the service has a local store than the offers differ to what you get in the US. The German Apple TV has German content and not the newest US series and movies. A way to get around this is to have VPN connection through a server in the US or a proxy server in the US. This option can decrease you bandwidth.