Humming and ground bars scrolling through the tv. I called Comcast about the problem ... I ended up ordering the Axiom ground isolator. It came in today and within minutes the humming and ground bars were eliminated from the set.
It's well worth the money to get rid of that dreaded hum.
Thanks again Axiom.
I have a hum I recently noticed from my bedroom SD Comcast DVR box(Pace TDC577X). I imagine the DVR has a spinning disk, but funny thing is it hums when it is OFF too. Probably totally unrelated to your issue, but since you guys were talking about humming, it reminded me of my hum.
