However , changing demographics would also affect WXFM .
Throughout the 1970s , WXFM continued to offer a diverse selection of programs as well as being one of the last major Chicago FM stations to offer brokering .
Changing demographics would also affect WXFM .
Throughout the 1970s , WXFM continued to offer a diverse selection of programs as well as being one of the last major Chicago FM stations to offer brokering .