RadioSonic was a Canadian radio program, which aired on CBC Radio 2 from 1997 to 2003. RadioSonic, which aired on Saturday evenings, was originally created by combining two predecessor programs, David Wisdom's Night Lines and Leora Kornfeld's Realtime. Both Wisdom and Kornfeld initially remained as cohosts of the new program, which profiled Canadian indie rock and alternative music, until Kornfeld left the show to pursue academic studies in England at the end of the 1999 season and Wisdom became the sole host.