If you haven't corrected your problem already you could try this.
you need a very strong magnet, switch your TV on and taking the magnet in your hand hold it to one corner of the TV screen, don't worry if you see the colours starting to be pulled towards the magnet, it will get corrected.
now this has to be done in a fluent and continues motion.
as mentioned start from one corner of the screen but don't touch it with the Magnet, now you need to run the Magnet all the way around the screen in a circular fashion starting at the edges and as you are circuling you move in towards the middle of the screen, in a spiral fashion.
so you circle the screen round and round and as you approach the centre of the screen you pull back your hand and come away from the screen until the magnet is no longer affecting the screen.( but don't pull away to fast, keep the same fluent movement).
you see what is happenning is you are resetting the screens own magnetic force. each TV has a coil called a deguasing circuit this keeps all the colours in place and balanced so what you do is disrupt that for a moment until you release then the circuit takes over again, and eveything goes back to normal.
if it doesn't work the first time you can repeat the process, but if it is still not working this could be from two factors.
1- The Magnet is not strong enough
2- you are not doing it correctly in a smooth flowing continues action.
the only other way is to take it to a TV engineer who will have a Deguasing coil, its an Electric magnetic which is strong and he will do exactly what i have explained you.
ps: oh and after you finish keep the magnet away from the TV.
hope this helps good luck
Yusef
May 2004