The first thing to try and figure out is how the rf is getting into the
tv. Are you on cable, an outside antenna? Unhook the cable or antenna
line and see if the problem persists. If so, it is getting in through the
power lines and you could try a toroid on the line cord. If through the
cable, could try a high pass filter. This rfi stuff really gets strange
some time.
73
Butch Bussen
wa0vjr
open Node 3148
Las Vegas