@Alejandro
So then, are the TV's listening to our conversations, or not? Seems to me that would be hard for a TV since it creates it's own white noise background.
Then you don't know much about noise cancellation or even early/analog audio encryption. It's a trivial matter to subtract out a known signal to recover a "clean" conversation. At one point I was considering writing a mobile app based on the same concept for use when other forms of security weren't available/allowed.
What can be that interesting and profitable about tracking us so intently???
You don't know what kind of fish you'll catch until you drop your line in the water and wait. It's the same reason spam/botnets still exist: it's cheap to do and, even if there's no direct way to profit from it, you can still sell it as a service to those who are foolish enough to think that they can use it properly. 147dc4255ffb58b0262fc58bde05311fde8b577fd289d3a7c81426a5e082854a