Sears Silvertone Color

[jstout66]

Black Matrix has to do with the phosphar screen. The screen will have a black phosphar plate instead of a white one, for much improved contrast and color. ALL Zenith Chromacolor tubes are "black matrix". The tube will look the same as far as the face-plate, and you will be unable to tell the differance with the naked eye until they are turned on. (or by looking at the tube number... a "V" in the tube number is a good giveaway, but not always.)