Siri responding to media

i just watched the new apple home view release video and on the occasions where the actors asked siri a question my apple mac silenced the audio and my local siri answered the question asked in the video. the same happens when i have the tv on and and ad or show has someone talking to siri - is there a way to help siri recognise the difference between device audio and actual live comands? I'm concerned about the possibility of unwanted siri requests to turn things on/off or open gates etc via home app connected devices.