Use case: I like to watch football *with* my dad via facetime, with the facetime window inset on top of the HDHomeRun app.
There's no way for me to balance the volume between the HDHomeRun and the facetime apps. I'd like to turn down the HDHomeRun volume so I can talk to my dad during the game, or turn it completely down so I can hear my dad's game volume in the background of the facetime connection.
Currently, I need to use 2 devices to accomplish this. I'd rather use 1.