Hi, something new started the other day, and I can't figure it out. Every time I change the channel or start a DVR recording on a Joey with H3, there is a terrible high-pitched noise that wakes everyone up. I've had the Joeys for a few months now, and this issue is random and new (about three days). It doesn't happen on my hopper 3, though that's connected through a receiver so not apples to apples. It happens on both my Joeys. Can anyone explain?