This should be at top of every list.
-PJ
That didn’t catch on because a good percentage of women, and dogs, can hear in the hertz range of that sonic remote, and found it annoying.
One of our neighbors had one of those Zenith remotes with the little four chime Xylophones inside to Control the TV functions. He grew to hate it because every time the dog came through the room the TV either changed channels, the TV turned on or off, or the sound muted.
They finally figured it out. The dog's license tags were jangling in keys that were similar enough to the tones the little chimes the Zenith remote would out put and the TV was picking up the under and overtones and interpreting them as commands! The took the expired tags off the dog's collar and the TV problems went away!