Do you have a 3-wire house wiring? i.e., live, neutral and ground wiring?
Does your tv ac plug uses 3 prongs?
If you do, is the ground (round) prong still there? If the ground prong was
removed, then when you plug the tv
to the outlet it's possible the tv's ac plug is connected the other way,
i.e., the neutral prong in the plug gets connected
to the live house wire. When this happens, the tv ground chassis may be
connected to the live wire.
Bobby

"David Sewell" wrote in message
...
Hi,
I was getting a bit cheesed off with receiving a shock everytime I plugged
my communal aerial into any devices connected to my tv. I have been
blaming
the aerial system for the problem. So, I decided to carry out a quick
investigation with a humble neon screwdriver. I found that the scart
earthing from the tv (Sharp model 28lf92H) was live.
I am puzzled as to how this can be. Would a simple mains input reversal
to
the tv solve the problem? I think I may have a pdf file of the manual for
this set somewhere if need be, but my serving skills are a bit rusty after
years of non activity. Any pointers in the right direction are most
gratefully accepted. Thanks in advance.

Best wishes,
David