Difference between PAL and NTSC video?

The term NTSC-J is also used to distinguish regions in console video games, which use televisions. NTSC-J is used as the name of the video gaming region in Japan. Games designated as part of this region will not run on hardware designated as part of the NTSC-US or PAL mostly due to the regional differences of the standards, but there is usually a kind of regional lockout built into the video game systems in question.