Strange things started happening to my TV since first plugging in my new Apple TV a couple weeks ago, and while I didn't immediately connect the dots, it quickly became apparent that the new device was the culprit. After a bit of digging and a lot of commonsense, I figured out my problems and how to fix them. As often, the solution was just at the click of a button.
Read this if your new Apple TV is messing up your TV or receiver