Help needed to adjust the picture size.

change screen from zoom to normal.

If the button on the television remote that is meant to adjust the picture size i.e. wide or format/view mode button is not working then you need to adjust your cable box. There is a hd zoom# button on the cable remote towards the bottom that will fix this or sometimes the button will say format or aspect. You may have to go into the cable box's settings and choose crop 1080i or some other picture format setting that will keep the heads from being chopped off. You may have your cable box on the wrong resolution for your television. Your cable box may be connected to the television in two places, and your television might be on the wrong source/input for hd viewing.

Adjust the aspect ratio. You should be able to get to it through the onscreen menu.

Change the aspect ratio on the set. If this does not work, change the aspect ratio on your cable or sat box.

chang pix format it will be like full zoom 4.3 16x9 if you use a cable box check format for cable box also

Press "wide mode" on TV remote until it is on "full". Check for same on set-top box.

Try this setting and see if it helps: Menu>Picture>Advance Picture Settings>Scan Velocity Modulation (Check mark it) Then the TV will try to auto adjust it's picture size to the source you are using. I noticed it most on ESPN News HD. If you are using a HD cable box, you might be able to use the cable box settings to change the picture size. Sometimes the box is on "Zoom" and it takes the top of heads off.

Also, try adjusting the settings on your cable box, not on the TV. The usually solves the problem and will then allow you to adjust the size of the picture.

Normallly, if the picture size button on the remote for the television does not achieve the desired affect, then, a cable box or a satelite box is where the change needs to be made.
For example:
Some Motorola Cable receivers need to be set up in the menu to go to a wide screen or zoom mode when an analog signal is detected. There may be a format button on the remote.
Some Dish Network boxes have Size buttons on their remotes and also in their main menu.
It's difficult to determine the repair without knowing the types of the peripherals.
Hope this helps.

If the television is connected to a cable box such as Time Warner's HD box, the picture mode can be changed by pressing the '#' on the cable box's remote keypad (where the channel numbers are). This cycles the picture between zoom, normal, and stretch which could be cause of your problem.