Anyone feel free to chime in on questions and answers, I'll make a start on what I would guess are a few FAQs by noobs.
Is there a TurboGrafx/PC Engine price guide to used games and consoles?
How many games were released on the PC Engine?
How many games were released on the Turbo Grafx 16?
What's the story with the US Magical Chase?
What's the difference between the US and Japanese Magical Chase?
Can I play PC Engine CDs on the PC-FX console?
Can I play US HuCards on a Japanese console and visa versa?
Can I play US CDs on a Japanese console and visa versa?