MITSUBISHI WS-65813 - WAVY, WOBBLY IMAGE. PLEASE HELP!

I HAVE A 3 YR OLD MITSUBISHI WS 65813 THAT JUST STARTING TODAY, THE PICTURE OR IMAGE IS WAVY OR WOBBLY LIKE A FLAG WAVES IN THE WIND.   IT DOES IT ON ANY CHANNEL AND EVEN ON THE TV MENU, SO I KNOW ITS NOT THE SIGNAL.  CAN ANYONE PLEASE HELP ME ON THIS OR HAVE ANY GOOD IDEAS ?   I LOVE THIS TV AND DONT WANT TO EVEN THINK ABOUT HAVING TO GET RID OF IT !!