NTSC (National Television System Committee) is the analog television system use in the United States, Canada, Japan, Mexico, the Philippines, South Korea, Taiwan, and some other countries (see map). , the U.S. standardization body that adopted it. . The first black-and-white NTSC standard for broadcast was developed prior to the Second World War and had no provision for color transmissions. The standard called for 525 lines of picture information in each frame, and 30 frames per second; the frame rate was later slightly adjusted for the color standard. Civilian development of commercial television was halted with the entry of the United States into the war. In 1953 a second standard was issued, which allowed color broadcasting to be compatible with the existing stock of black-and-white receivers, while maintaining the broadcast channel bandwidth already in use. This was an important commercial advantage over incompatible color systems that had also been proposed. NTSC was the first widely adopted broadcast color system. After over a half-century of use, over-the-air NTSC transmissions will be replaced with ATSC in the United States in 2009. Various digital television systems have replaced the vacuum-tube era standard.