I need to adjust my picture settings. I tried to tweak them to fully fit my HD channels and now its just all messed up. Can someone find either the original service menu settings for the Hitachi 57S715 or a custom setup that has worked for you? Any help would be greatly appreciated. Also, would a software update fix this issue?
That's why you write the settings down before you adjust anything in the service menu.
You'll just have to try to adjust them back, or buy a new TV.
This is why you don't go into the service menu unless you know what you're doing. There is usually no reason at all to go into the service menu with most modern displays.
Sucks for you. But it's your own fault.