I'm having an issue with my stereo. It seems that whenever I have the stereo and TV on at the same time, such as watching a movie, there is a very slight high-pitched ringing that comes through the speakers. You can't always hear it, but it's definitely there. If you turn the TV off, the noise goes away. My TV is also increasing the hum when I am listening to my turntable (along with producing the same ringing sound). When I turn the TV off, the hum goes back to its normal level (very low). Any ideas on how I can get rid of this noise?
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