"BillR" wrote in message ...

Modern TVs tend to have a switched mode power supply which isolates the
chassis from the mains.
If it doesn't then headphone socket is a no-no.


Millions of sets in use today dont have that, and do run with live
chassis. It is not an outdated practice at all.

To connect a headphone to a chassis thats either live, or not live but
not particularly well insulated from live, is a /really/ stupid idea.


Regards, NT