TVTools provide a set of tools to check your Apple TV device and its surroundings,
it allows you to check how much free space is available on the device,
it also allows you to see what is the ping speed from your apple tv to a reference site.
each screen display details about the device, the operating system and network interfaces,
future release will include TV and audio calibration,
more info is available at: http://obyectapps.blogspot.com