I'm not sure I understand. I get that it makes sense, after a short exit to something else, to then return to where you were before.
But at what point are the start up settings meant to take effect? Are you saying they don't at all on Apple TV? That is certainly been my experience - no matter how long my Apple TV has been switched off (even overnight) it still comes back exactly where it was. If I was watching Ch3, it starts the next morning on Ch3. If I was in Guide, it comes back in Guide the next morning. At no point have I seen it obey the Startup section/channel settings.
If that really is the case maybe it should say so in the Server side start up client settings (only on Android) like it does for features that are only available on iOS.
But once updated it does then go to Live TV and the start up channel.
