I have a 42" dlp Samsung tv. It's around 2.5 yrs old. I recently got fed up with the audio lag from the video with the built in speakers and decided to plug in a cheap stereo to the rca audio out. About a week later, there is now no sound coming out of the stereo speakers. I checked that the stereo itself is still working and it is when plugged into other components such as the cable box. When the TV and stereo are on, however, there is a buzzing coming from the stereo speakers. When I unplug the audio cables, if I touch one to the output, it buzzes through the speakers. Can anyone tell me what is going on and possibly how to fix it?