I have a phillips 27" flat screen tv, brand new, and i can hear this very high pitched, hard to hear noise, if your watching tv you wont even notice it, but when i go behind the tv to plug something in i can hear it, or when im close to it i can hear it.
Now in the menu for this, there is nothing about contrast, anyone familiar with these tv's know any links or anything to properly colaberate it w/o the avia discs or whatever.