Wikipedia
WSCR ( 670 kHz, "670 The Score") is a commercial AM radio station licensed to Chicago, Illinois. The station is owned by CBS Radio and broadcasts a sports talk radio format. Its transmitter is located just off Army Trail Road in the suburb of Bloomingdale, and its studios are located at Two Prudential Plaza in the Loop. It is known as "The Score," and has been on the air since January 2, 1992. WSCR is currently the Chicago radio home for Chicago Cubs baseball and is the flagship station for the Chicago Cubs Radio Network, as well as Illinois Fighting Illini football and men's basketball. WSCR also carries other live sports programming from CBS Sports Radio and Westwood One, including Monday Night Football.
WSCR uses HD Radio on its AM signal 24 hours a day. The station's programming is also available to listeners with an HD Radio receiver via a simulcast on the HD2 subchannel of sister station WJMK.