Upon receiving an FM multiplex broadcasting wave carrying audible information and supplemental visible information, an FM radio receiver equipped with a display unit audibly outputs the audible information and displays the supplemental visible information on the display unit. When the FM radio receiver receives the supplemental visible information while the receiver is not in a reproduction mode, the received supplemental visible information is stored in a reproduction buffer. When the FM radio receiver is set to the reproduction mode, the supplemental visible information stored in the reproduction buffer is displayed on the display unit.