Mirror and Extended Desktop - Panasonic 42" 720 image cropped

I have my 15.4 macbook pro connected to a Panasonic 42" 720 HDTV via the mini displayport. In both mirror and extended desktop mode, the Panasonic image is cropped off on all four sides. I fooled around with all the resolution settings and nothing changes.
No matter what I do, the menu bar and dock get cropped off by a few pixels. How can I fix this?
thanks

Right, your TV is overscanning. That's very common. Overscan has been part of what TVs have done for decades.
If your TV is meant to be compatible with computer output, there should be a way to set the screen size using the TV's remote and/or menu system so that computer output just fills the screen. So check you TV's user manual about making a connection to a PC for information about how to get rid of overscan on the TV.

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