Since the 1980s, many of the CBC's AM stations moved to FM in response to complaints of poor AM reception. This meant that the old distinction between the AM "Radio" network and the FM "Stereo" network was no longer accurate, even though many of the FM "Radio" stations broadcast in mono only. As a result, in 1997 CBC Radio became CBC Radio One and CBC Stereo became CBC Radio 2 (it is now CBC Music). Although some Radio One stations still broadcast on AM as of 2018, because of issues with urban reception of AM radio signals many of the remaining AM stations have added FM rebroadcasters in major urban centres within their broadcast area.