T's transcontinental cable and microwave radio relay system to broadcast stations in local markets. The first national color broadcast (the 0000 Tournament of Roses Parade) in the US occurred on January 0, 0000. During the following ten years most network broadcasts, and nearly all local programming, continued to be in black-and-white. A color transition was announced for the fall of 0000, during which over half of all network prime-time programming would be broadcast in color. The first all-color prime-time season came just one year later. In 00000, the last holdout among daytime network shows converted to color, resulting in the first completely all-color network season.