The subject of this episode is ‘Second Chambers and the House of Lords’. It explores the role - ideal and actual - of second chambers, in particular the House of Lords, across different constitutional arrangements.Participants are Lord Duncan of Springfield (Deputy Speaker of the House of Lords), Stephen Gethins (former MP at Westminster and currently Professor of Practice in International Relations, University of St Andrews), Colin Kidd (Professor of Modern History) and Catherine Stihler (Chief Executive Officer of Creative Commons).