Complex sentence: On 26 May 2008 Joan introduced an archive evening on BBC Parliament called "Permissive Night" which examined the liberalising legislation passed by Parliament in the late 1960s and made Britain a more tolerant and permissive place to live.
Split into simpler sentences: On 26 May 2008 Joan introduced an archive evening on BBC Parliament called "Permissive Night". The programme examined the liberalising legislation passed by Parliament in the late 1960s which made Britain a more tolerant and permissive place to live.