[old_tv_nut]

1/40 second is too short to capture a full frame- that's why you get the shutter bar. You need to shoot 1/30 or preferably 1/15 (although this will invite motion blur from multiple frames unless you still-frame your player). The short shutter time will also cause color changes because the 15GP22 phosphors have greatly different persistence.

For best color, I suggest using still frame, a slower shutter, and a tripod of course. If your camera is resolving the phosphor dots, they may be overexposed even when the average exposure is correct, so it's a good idea to adjust your exposure darker and then increase the brightness in post processing.

This was always a problem in photographing TV pictures, even film photos of black and white TVs. The average brightness consisted of the bright scan lines and the dark spaces in between, resulting in a picture with odd contrast tones because the average consisted of black spaces and over-exposed picture scanning lines. The same thing could happen with color TVs and high-resolution digital cameras.