From The Art and Popular Culture Encyclopedia
Color television is a television transmission technology that includes information on the color of the picture, so the video image can be displayed in color on the television screen. It is an improvement on the earliest television technology, monochrome or black and white television, in which the image is displayed in shades of grey (greyscale). Television broadcasting stations and networks in most parts of the world upgraded from black and white to color transmission in the 1960s and 1970s, and today virtually all television besides some inexpensive closed-circuit surveillance video systems is color television, so the term is becoming redundant and is not used much. The invention of color television standards is part of the history of television, and is described in the technology of television.