NTSC is an analog video format used mainly in the Americas, Japan and the Philippines.
PAL is a competing video format used in other territories.
Alaska, American Samoa, Antigua, Antilles (Dutch), Aruba, Bahamas, Barbados, Barbuda, Belize, Bermuda, Bolivia, British Virgin Islands, Burma, Canada, Chile, Columbia, Costa Rica, Cuba, Curacao, Diego Garcia, Dominica, Dominican Republic, Ecuador, El Salvador, Fiji, Grenada, Guam, Guatemala, Guyana, Haiti, Hawaii, Honduras, Jamaica, Japan, Johnston Islands, Korea South, Leeward Islands, Mariana Islands, Marshall Islands, Mexico, Micronesia, Midway Islands, Montserrat, Myanmar, Nicaragua, Okinawa, Palau, Panama, Peru, Philippines, Puerto Rico, Samoa, St Kitts and Nevis, St Lucia, St Vincent, Surinam, Taiwan, Trinidad and Tobago, United States of America, Venezuela, Vietnam, and Virgin Islands.