An issue emerged regarding how to consolidate shading with NTSC without making the a large number of B/W TVs being used by the mid 1950's old.
Ihe isi ike bilitere banyere otu esi ejikọta agba na NTSC n'emeghị ka ọtụtụ nde ekwentị B / W jiri ya mee ihe site n'oge mmalite nke afọ 1950.