SMPTE color bars
COLOR BENCHMARK FOR THE NTSC VIDEO FORMAT
Color bars; Bars and tone; Colour bars; NTSC color bars; Colorbars; SMPTE colour bars; Curtain of colors; SMPTE Color bars; SMPTE Color Bars; Engineering Guideline EG 1-1990
SMPTE color bars are a television test pattern used where the NTSC video standard is utilized, including countries in North America. The Society of Motion Picture and Television Engineers (SMPTE) refers to the pattern as Engineering Guideline (EG) 1-1990.