Problem with a Toshiba television CF32C50

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!