Great video, i found funny when the guy realized that the person on his tv could see him and was talking to him as i had seen a video from a thread on this forum not too long ago with an engineer explaining that tvs are also cameras who can see you. He went as far to explain how it works that a signal goes both ways! So yout tv receives a signal and can also send a signal back aka send picture and sound of everything there is in your room back!

If i find it again i will post it here. If anyone else had come across that thread please post it here as it contained amazing intel!