I'm having issues with swallowing this tale...

I can't find anything to solidly debunk it, but I have found several 'devices' that allegedly use it.

However, normal TV audio frequencies don't hit ultrasonics...
[www.cybercollege.com]
[answers.yahoo.com]


See, it'd make no sense to me why a TV manufacturer would spend money on a higer audio frequency than humans can hear -- e.g. up to 15-20k

Also, the FTC makes no mention of it:
[www.ftc.gov]


I'm skeptical till I see some kind of proof.