No, it just doesn’t work like on a mobile phone and therefore the same applies to the “big screen” apps as if you were operating several TV boxes, namely that you would have to pay Multiroom Max for parallel operation.
So either pay for Multiroom Max, or re-register the device each time, or carry the TV box back and forth, or simply forget the whole thing and only use one TV set 🙂
Hobby-Nerd ohne wirtschaftliche Abhängigkeiten zur Swisscom