@SonosSupport I did check with them and they said that Sonos made a change which removed that function. My clients aren't pleased that they have to use their phone when using their TV though. So, you are saying that Harmony can enable that function again?
@SonosSupport I was controlling TV sound through line-in on a Connect:Amp via a Harmony remote. You no longer will allow the Harmony to change the input to line-in from the Harmony remote. What can I do to fix this issue?