Just to follow up on this too, we actually do not offer AirPlay support as a feature. If you use our iOS app, you will see that it specifically has no AirPlay support because AirPlay cannot work with mpeg2 video, which is the majority video codec used by our customers, via an HDHomeRun. Since we can't support it, we certainly do not offer it.
Expectation setting is important to us.
The AirPlay support you're talking about is coming from the tvOS system. Channels has no AirPlay button or Audio Routing features inside the app.
When you're setting the audio route, you're doing it with the overlying operating system, not with Channels. If we could stop this, we would, because again, expectation setting is very important to us.