Complex sentence: In 1953, RCA's all electronic color-TV technology was adopted as the standard for American color TV; it is now known as NTSC (after the "National Television System Committee" that approved it).
Split into simpler sentences: In 1953, RCA's all electronic color TV technology was adopted as the standard for American color TV. It is now known as NTSC (after the "National Television System Committee" that approved it).