We had one of those TVs when I was a kid... and our dog had one of those metal link collars, and when she would shake her head the TV would change channels, and the volume would change. :). I had forgotten all about that.
Yep, my neighborhood friend had one. I discovered that my keys, when shook, would hit the frequencies to do stuff too. His dad was annoyed by it and I don’t know if he figured out how his TV would spontaneously change to channels