On 07/29/04 19:25, Larry Fine said...
Another possibility is any nearby electronics
with a transformer and/or motor, both of which
produce quite strong magnetic fields. Try moving
the TV while other components are unplugged, not
just switched off.
I would think that a transformer would cause moving variations in the colors, because NTSC is not exactly 60 Hz. But do some of the other formats use a line-synced refresh rate? If they are not synced to the power line, the colors would shift, and he probably would have mentioned that. I am sure that moving colors shifts would freak out anybody more than static color shifts.