qnli question: When did E.K. Gaylord's Oklahoma Publishing Compan buy WKY Radio? sentence: In 1928, WKY was purchased by E.K. Gaylord's Oklahoma Publishing Company and affiliated with the NBC Red Network; in 1949, WKY-TV (channel 4) went on the air and later became the first independently owned television station in the U.S. to broadcast in color.