The 1920s was marked by expansion by Express Publishing as the company started one of the city's first radio stations, WOAI, in 1922. As the two rival companies entered the 1950s, the "Express" and the "News" both had higher readership numbers than the "Light". However, the "Light" skyrocketed to the top of the market when it acquired a number of popular comic strips, like Dick Tracy. Over at "Express Publishing", the company diversified further as they acquired a couple more radio stations, and a television station which they renamed KENS-TV. Those call letters were intended to stand for, K-Express News Station. In the 1960s, "Express Publishing" was sold to the Harte-Hanks newspaper group.