Recently I happened to watch a review of the SuperGrafx by HappyConsoleGamer on YouTube. Haha - I can see why he chose that name. Cool dude. He recommended checking out Luke's videos. I gotta say - wow. His stuff is amazing. The "simple" fixes, the trips to Hard Off - brilliant.
I haven't got a clue what went down with the so-called "Final Video", but apparently he's back, and making fun videos again.
People, I encourage you to check out Luke's vids.
http://www.youtube.com/user/lukemorse1