"Arjan" wrote in message
...
On 7 feb, 22:12, "Michael A. Terrell"
wrote:

I cannot imagine that the CRT is so magnetized.....

snip


The tube can pick up enough residual magnetism to cause your problem simply
from being moved. They are very sensitive this way (the Earth's magnetic
field is the cause of this phenomenon) but in case it wasn't mentioned
earlier, make sure there are no speakers near the TV.

It's also possible that the degauss circuit has failed or a correction
magnet has fallen off the tube, or somehow the purity rings got jostled.

Mark Z.