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There are many sources of RFI today, CFL's as mentioned, light dimmers, phone chargers, computer power supplies, not to mention garbage that comes in over the line from the neighbors. I generally put one cap from each side of the line to chassis, after the switch, so they're not working when the set is off. No resistor involved. Granted, interference may be more noticed on an AM radio. TV with FM sound may not be as affected, but possibly AM video could be?
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Reece
Perfection is hard to reach with a screwdriver.
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