TV has a high-pitched whine?

I have an SD Emerson TV and recently I've been able to hear a very high-pitched noise from it. I heard every now and then before but now it's louder and constant whenever the TV is on. It's very annoying and I have sensitive ears, so it gives me really bad migraines to hear it. I was just wondering if... show more I have an SD Emerson TV and recently I've been able to hear a very high-pitched noise from it. I heard every now and then before but now it's louder and constant whenever the TV is on. It's very annoying and I have sensitive ears, so it gives me really bad migraines to hear it.
I was just wondering if there was anyway to get rid of the noise?
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