re: Worth it to try to sell old Plasma TV?

I have a 58 inch and 65 inch. Both HDMI inputs on the rear of both sets don’t work. Only the side third HDMI input works on them. Weird. There is a light blue haze that appears dead center of any brightly lit white image on the 65 inch (possibly some old burn in or something similar) and despite all of that I haven’t upgraded yet. Not until the cost of the really good OLEDs come down.