I don't think I will have this problem. You guys listen to radio that long huh. I am more of a TV watcher. I only play radio when I'm cooking and making the bed.
Looks like lot of devices are having problems with audio though from what I read here recently. All types of it. So far I don't have any. Maybe coz I really don't use mine as much. Who knows.
And for the one that I recently use it and as often, most of the time I've to tell it to turn on/off my light couple times before it works.
I even voice trained it today and still have to tell it to turn on/off my light couple times before it works.