I ever got zapped by high voltage by only touching the power button on
the circuit board, and touching nothing else. I was also sitting on a
wooden chair with my feet off the ground. How many people ever got
zapped by pushing a plastic power button?

It happens. Perhaps there was a problem with the set that allowed one part of
the switch to become energized. Those switches do have some metal parts,
including some on the exterior, and it's possible that those parts may have
been in circuit but not at ground potential.

But, I do agree. This is a weird occurance. What TV are we talking about
here? - Reinhart