Sunday, April 15, 1956, is membered as "C-Day" at WMAQ-TV. It was described
by Broadcasting-Telecasting magazine as "a daring breakthrough the black-and-
white curtain." At 4:15 PM, Robert W. Sarnoff, then President of NBC, pushed a
button and ushered in a new era in television. Channel 5 became the world’s first
all-color TV station as "Wide, Wide World" carried the event to 110 NBC-TV
affiliated stations across the country.

Robert W. Sarnoff