When was the first color television sold?

An earlier colour system by CBS briefly went on sale in 1951, but it was incompatible with existing black and white sets and was soon withdrawn. The breakthrough came with the RCA CT-100, released in 1954, which used a system that black and white sets could still receive in monochrome. It carried a very high price for the era, cost about 1,000 US dollars, and had a small screen, so few were sold at first. Colour broadcasting and set sales grew slowly through the 1950s and early 1960s. By the late 1960s colour television had become common in homes across the United States.