TV to 2-Channel stereo - static on one channel

Hello. I've just upgraded my pre-amp to a McIntosh C45 and attempting to connect my Plasma TV. Unfortunately, I get intermittent audible static on one spkr. I've checked all the ICs, changed the input from Aux to Sat but no change. When I disco'ed the TV coax cable from the wall, the static stopped. Is there some special shielding I need to do? Thanks! Kevin
Yes call your service provider and have the earth ground repaired then you will be all set.