Television not working?

My toshiba rear projection tv, the picture has sort of shifted and the picture looks as though we should be wearing 3d glasses to see it better! Has anyone any ideas on how i can fix the problem?

Answer:
this is very common.
the three colour tubes need realignment.
Show your tv to a technician, thats all I can say, and make sure that everything is plugged in correctly.
Called convergency problems. You'll need a technician.
old traditional methods,give it a wack on the side normally works.
the picture is made up of three or more coloured lights
One or more of these is out of focus or alighnment.
Hunt for your instruction book. or down load it from the company website
Your convergence has shifted. If a part has failed, there's nothing you can do about it. You could try following the procedure in the manual on converging the colors. If it doesn't work, then you'll have to call a service tech.
Try percussion maintenance

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