. OK, I'll take that back - there are lots of 2d games that I would see at higher resolutions. However most of HD-remakes have just rendered games at higher resolution, some times with better FPS and textures. This kind of remake is lazy and I don't want nothing to do with them.
@lil_cheeks: You need NES that can output RCA or RGB (SCART or Nintendo's own multicable that SNES uses) and a compatible capture device that can be used by the streaming application. Nintendo however is pretty shady how they drop features from model to model or from region to region, so be careful about that. For example: EU Gamecubes do not have component out function and it might be that North America never got RGB capable NES consoles.