I would be forever grateful for advice! I have a Panasonic CT-34WX54. I also just got an Apple TV, which is connected via HDMI. The Apple TV has made it apparent that I have a problem with overscan.
First I played a ripped movie on the Apple TV, and noticed that I wasn't seeing quite a bit of the picture. I would have just lived with this, however... I next tried to play a video that has burned-in subtitles, and 2/3 of the bottom line of the subtitling is not visible. Watching it and trying to figure out what the subtitles said made my head hurt.
I am new to all this, so it took me a while to learn that this cropping is called overscan, that it is normal, etc. etc. I took the time to read almost all of this thread, and I even printed out how to get to the service menu and went to the service menu, but then I was terrified so I exited out.
Anyway, my question is, can someone please tell me what specific parameter it is that I need to adjust in the service menu to get a few more lines at the bottom of the screen?