Reminds me of a TV aerial installation I go past sometimes. Mounted on a garage roof inches under the 16mm supply to the house...really dumb. Eventually, the wire will sag, the insulation will rub off, and the aerial will become live, providing 240V superimposed on the UHF signal.
Yeah mate,
What's worse is, these days all TV aerial inputs (those that use them) have a capacitor in there to help block the half-mains voltage getting out, so a fault like this could go un-noticed for quite a while, as the iron roof is un-earthed.
I feel sorry for anyone that disconnects that TV set.
