I'm not expecting an answer, but it's worth a shot....... I have a 20+ year old sony trinitron 19" telivision. It's a nice tv, but it has stopped showing green altogether. At first, it would come on and off intermittently, but now it's off all of the time. I thought it may be the green tube's cathode is burned out, or maybe has a short or something. Does anybody have some suggestions on what may be wrong?