Toshiba flat screen question

<k @highstream.net> asked:

It is not caused by any satellite signal.
Does it get better or wrost as the set warms up? Set contrast at mid level
and adjust bright from minimum to maximum - how much is the difference? Does
the corners get acceptably focused with minimum bright?
If you set contrast and bright to max, how is the focus at the center of the
screen?
How did it started doing that, suddently or progressively?
I would say you have a CRT which is beginning to go weak, or you have some
problem with the Focus/G2 divider, or the dynamic focus circuits do not
work. The focus adjustment can help, but if it's really the tube, it's not a
good sign. You should have a competent tech take a look, and at least
readjust the focus and see if it improves.

Greetings,
Jeroni Paul