This is off topic so beware...

For a couple of years now Ive noticed cable TV's doing strange things. Strange because I dont' know how cable TV works. For instance when a cordless phone rings, certain channels flicker. And today while I was sitting in my dorm room, it sounded like I was intercepting CB radio from the local Police department. On channel 13 i held the coaxial cable half way off of the plug, just enough to blur the channel. I then listened to all sorts of things. "A white truck with a license place XXX-XXX seems to have a stolen trailer"

Now why are TV's doing this and where can I read more about it?

cheers