This might be off topic, but if you can help I would be grateful.
My neighbours have their TV on until about 3am and the volume loud enough so that I can hear every word. I was wondering if there is something I could buy that could interfere with the TV picture or sound but not damage set. What would be nice would be an effect like when a mobile phone is close to a monitor or TV.
It has be powerful enough to have a range of about 6ft (2m) and go though the floor.
I have asked them to lower the volume at midnight but they have ignored my request.
Thank you for any ideas