From what my dealer told me the only TV’s that are officially able to control the theatre and vice versa are the few LG’s listed under compatibility on the FAQ page.
Other TV won’t have a connection port option.
If you want to control the interface of your TV you have you use the TV’s remote and not a B&O remote or app.
Im GUESSING though that with HDMI control turned on though you can easily tell your TV to turn on when you turn on the theatre. But like most people that’s not important to me as I use AppleTV for everything.