TV gives me a headache when its on; any suggestions?

I do the same, but it is a sign of addition. I still use roof antena - more channels, would be like giving drugs to an addict.

My TV does not change anything, but I have it plugged into different outlet of the Furman Elite 20PFi conditioner. Try different outlet for TV, even with extension cord when it is far, because it might end up on the different supply phase (to isolate the problem). Check if your ICs or speaker cables don’t follow power cables. Make them cross each other at 90 deg, if you cannot keep them apart. Are your ICs shielded?

Large ferret might work as well - just try to wrap AC cord over it and soon you will forget minor problems with your system's sound.