He joined London 's Capital Radio in June 1978 and presented a variety of shows until July 1980 , when he became the breakfast show presenter .
As a standby DJ , Smith occasionally broadcast when live outside broadcasts failed .
Smith joined London 's Capital Radio in June 1978 and presented a variety of shows until July 1980 , when Smith became the breakfast show presenter .
As a standby DJ , Smith occasionally broadcast when live outside broadcasts failed .