Just to pull this even further off topic ;-) - about 50% of the time, the 
speakers on my desktop PC at home in Boston used to emit the sounds of some 
local "the hottest hits of the 70's 80's 90's and today!" station. When it 
was happening, nothing I tried would get rid of it (except turning off 
power to the speakers). I finally got it to stop by giving the PC to my 
mom, putting the speakers in storage, and moving 7 time zones east for a year!