Hi, on tvos 9 and 9.0.1 I was able after switching off ATV to wake it up with mac/iphone just with icon in menu bar (turning on airplay). But now on 9.1 if turn off atv, the icon disappears. It was just bug before? It was really cool.
We had the same story on aTV 3 as well. Until Apple fixed Bonjour and brought back the mDNSResponder instead of their discoveryd venture.
Current tvOS also keeps reregistering itself (ever increasing numbrr appears at the end of its share name). We had this on aTV too.