I don't know, but I'm not enamored of twisted pair "shielding," where the wires' external fields supposedly cancel each other; same sort of thing with impinging external fields on the wires --the induced voltages tend to cancel each other.
All supposedly.
But it's cheap.
Old TVs can generate a lot of RFI, especially from the anode voltage circuits and the horizontal oscillator toobs.
The horizontal deflection sawtooth wave is super-rich with harmonics. Note the remark about "single high-level impulse noise." Ayup, the horizontal oscillator is pretty powerful. When I was sort of* servicing TV sets, that high-power tube was an immediate "person of interest."
To me, it's stretching things that the TV's RFI could affect the whole village's system unless he was real close to some kind of node like the telephone pole where the internet comes into the town.
RFI= "Radio Frequency Interference."
Terry
* I've told that story before.