moding your NES for RGB is not an easy task, more so in the pursuit of the piece required rather then actual labor. The actual NES itself does not output RGB natively. In order to get it to output to RGB you will need the board out of a Nintendo playchoice arcade cab. Being that all arcade boards are made for RGB. That is a problem at 2 points...first, find someone with a board they are willing to sell, and unless somebody is willing to render a working playchoice uselss, thats not gonna happen. and second...yeah, its hard as shit to do anyways. If you want good info on it and cant find it on any posts, contact my buddy Mark, usernam acem77 on here. He did the mod on his, lucky bastard got the board on ebay out of a broken machine for like $18. Im sure he has all the info you will need. good luck.