Improving Television Color Uniformity Through Use of the VIR Signal

Color television in the United States began to grow rapidly in the early 1960' s. As the transition took place from a primarily monochrome to a primarily color service, it became increasingly evident that the color characteristics observed on home receivers varied substantially from program to program and station to station. At the suggestion of the Society of Motion Picture and Television Engineers (SMPTE), a meeting of the Joint Committee for Inter-Society Coordination (JCIC) was called in 1968 to determine the most effective way to deal with the problem.