That is were the ferrites are NOW. Frig cord, air cleaner cords, lamp cords, fans cords.. I took them off the CD player RCA cords at least twenty years ago. (But still some on captive CD spinner AC cords) TV is on the Furman REF20i and uses a Pangea powercord. No need for ferrite there. Laptop cords have them built in...
So do some aftermarket high end power cords.
So do some aftermarket high end power cords.