The technology definitely works on the large screens - I have a couple of guys in Germany using Extenders on Frankenstein machines. The main issue is finding an LCD panel the correct size to match the original. 15.6" is good for 128 X 32 screens, but there isn't a good fit for 192 X 64. I'll keep looking at this as I know people want to replace theses screens.would that work for the large Sega displays? If so, you're sitting on a gold mine.