The WFIL radio stations originally broadcast from the Widener Building in downtown Philadelphia. With the anticipated arrival of WFIL-TV, Triangle secured a new facility for the stations, located at Market and 46th streets, which opened in 1947. In 1963, Triangle built one of the most advanced broadcast centers in the nation on City (or City Line) Avenue in the Wynnefield Heights community, in a circular building across from rival WCAU-TV (channel 10). The station still broadcasts from the facility today, even as a new digital media building was constructed that now houses production of the station's newscasts and other local programs, while the original studio was turned over to public broadcaster WHYY-FM-TV.