I picked up an old (1995) Zenith color TV the other day and when I turned it on, I noticed the color was faint while playing a DVD. I tried increasing the color and tint, but it turned the picture completely black & white. The strange thing is, it's only black & white when I'm watching a DVD (using AUX). The color works fine on regular TV. The problem didn't start until I tried adjusting the TV color, and the DVD player is new, so I don't think that's the problem. Anybody have any ideas? Thanks!