Hum Problem

I have a 6.1 high end HT system. I am getting a hum through the Side Surrounds only. When I disconnect the incoming TV cable the hum disappears, what can I do to eliminate my hum. Your help will be greatly appreciated. Thank you. Rick
Try a $40.00 product call M.A.G.I.C.! This is a device that goes between your cable line and the TV. It helped eliminate the hum in my system! Most audio store carries it.
Thanks Stone cold it took care of my problem. Rick