I have a Bravia KDL32S3000 tv and it is setup with quite a large overscan setting. When viewing a widescreen test card it is clearly showing less picture than it should. Is there a way of adjusting the picture to correct this?

I am able to get the TV into service mode (TT--) but there is no menu item for picture geometry and none of the TT codes I have appear to reference this either (and I'm not about to mess around with these settings anyway!)

There must surely be a way to adjust picture geometry.