Yeah, my government phone uses AirWatch (now called Hub for some strange reason). Since I'm not an admin for the system, I don't know exactly how much control they can do, as I still have a lot of control of my phone. But yeah, ATV might be one option, especially if you'd like some sort of centralized control.
We were originally thinking Roku after seeing how easy it would be to create the channel on Roku's platform versus other platforms and after knowing more about the CDN we use for our in-house training platform. Oh well, back to the drawing board.