I had a Comcast cable box last year that produced a couple minutes of what sounded like a CB or phone conversation while not "on" several times. Any theories what could cause that or is it time to get a tinfoil hat? I'm not exactly a likely target for eavesdropping.
Lots of cheapo electronics aren't properly RF shielded, and will pick up radio transmissions. I once had a pair of speakers that came with a PC as a "free bonus". Those things could be used as a radio (except for only one station).
