Quote:

I don't have cable or satellite connected up to any of my components. Not even the TV.



You can get an isolation transformer for audio signals as well. Its not a notch filter, Just a transformer. Obviously the quality will matter as with any type of transformer inline with your signal.

Here's one I would like to get for use with my computer but just cant justify the money at the time.

http://www.partsexpress.com/pe/showdetl.cfm?&Partnumber=245-875

Haoleb's Audio/DIY Website