Firstly you need to have a TV that has both NTSC and PAL color cding systems on it. Once you have that go to the settings of your TV and set the color system to AUTO. Then when you insert a NTSC disc...
NTSC and PAL are the color encoding systems for video used in North American and Europe respectively. The color encoding isn't as much of a problem as the region coding used for Wii and other games....