Q. We have a 2011 Insignia 720p plasma TV that has served us very well. We went with plasma for the superior off-center viewing qualities compared to the LED-LCD TVs available at the time. Over 50% of our TV watching is from a 40-45 degree angle. Given this, off-center picture quality is critically important to us and in addition, in my opinion the overall picture quality is (or shall I say was) better than other technologies. Unfortunately, the HDMI port is getting fussy and sometimes I need to wiggle the cable plug to get a clear signal. I know plasma is long gone, so here is my question. Sh…