I found that the TV didn't have such a setting, but the DVD player was where the setting was. That's why Sony most likely couldn't help you.
I have a 4:3 43" Sony projection TV. I recently got HD cable, and was wondering if I should set the HD cable box to 4:3 Panscan or 4:3 Letterbox as my TV type? I called Sony, but they weren't very helpful. Any help appreciated. Thanx -