Fox News sound is noisy

The TV was making a high pitched little chirp.  It got to the point I got up from my chair and walked around the house checking for leaky faucets dripping or a water leak somewhere.  Didn't find anything and careful listening made me decide the noise was indeed coming from the Fox sound track on TV.  Fox needs to move their studio to a quieter part of town to cut down on the emergency vehicle sirens and heavy crashing noises from the street and odd things like that chirp.