Picture distortion I have a multicolor bulls eye engulfing the whole screen

You can buy a degaussing Tool at radio Shack. I they don't have it on stock you can probably order it. It a a round circular tool with a cord you plug into the wall. It works basically like an audio demagnetizer.Be careful to follow the instructions carefully. If you don't, the tool will not work right.

Somehow the screen got magnetized. It needs to be degaussed (demagnetized) with coil tool that puts out a big magnetic field. All TV shops can do this for you quickly. The TV itself has a degaussing coil built right into it and everytime you start it up it does a little degaussing - that's the kind of 'boing' sound you hear. Might be able to get rid of your bullseye by turning the set on and off a bunch of times. On the other hand, if the internal degausser circuit has failed and stays on too long, it may be the source of the problem.