The picture does not fit the screen. The top and bottom of the picture go beyond the screen

Have you got it on a widescreen setting such as Zoom? If you have adjust the widescreen settings. On some TV's you can adjust the default widescreen. So when it's not showing a widescreen picture (auto mode) it changes to that setting. Some sets however only go to one default setting and it can't be changed.

You may need to adjust the aspect ratio of the picture, there is typically an "aspect" button on the remote that will adjust the picture from widescreen, super widescreen 16:9 ratio and sometimes you can zoom in. try that