Dark picture?

Ok, so I found a TV. About 27" looks like, JVC model, pretty nice, relatively new TV. But it was going to be trashed, so something had to be wrong. And it's the picture. I spent quite a while attempting to adjust the picture, but to no avail. It's very dark, and the brightness is turned to full. I was just wondering if there was any way to salvage this magnificent find.

T-Bone
August 2006