My friend last week bought a phillips 30" widescreen HDTV with a built in QAM tuner. I figured that since he hadn't bought an antenna yet, that he wouldnt recieve a signal channel in HD. Well I was wrong. Running from his ANALOG CABLE, he gets NESN, NBC out of Boston?! and CBS all in hd for free. I know Adelphia charges about 10 bucks a month for these, i just dont know how hes geting them over regular cable. He even gets about 50 music channels that he didnt have before and other random stations not even in english. Can someone explain how this is possible, and if he should even bother with buying an antenna. THANKS.