Television and Home Theater

Has anyone run into a problem with a blue colored shadow along the bottom of the screen?

I have a 60 inch RCA home theatre TV, Model #P60152CK, I was watching it and it just shut off. When i try to power it up the green power light flickers but thats all. I had this happen once before and the repair man knew what the problem was and said thats the only thing that ever goes wrong with this telivision, This repair man has since died . Is anyone farmiliar with this and if so do they know what part # I need.
Tanks,
Nick

When i first turn on the television the bottom of the screen is black. The picture looks like it is turned up or scrolled up like a peice of paper. This results in any letters or numbers on the bottom of the screen being upside down. After the television warms up, the black on the bottem goes away but the picture is distorted with a stretched appearance resulting in heads cut off and faces elongated. Can anyone tell me what the problem may be and about how much it may cost to fix it? Thanks!