AirTV is a two-tuner device, allowing two connected devices the ability to stream local channels at the same time
while on the home network. AirTV also allows one of those two streams to be viewed outside the home network.
With this capability, users can view either two streams at home, or one stream at home while one stream is viewed
elsewhere. There is no limit to the number of devices signed in on the account with the AirTV associated with
it, the only limitation is how many devices can view the local channels at the same time.