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Rob's guest this week is the theatre and film director Dominic Dromgoole
Rob's guest this week is the BBC News presenter and correspondent Clive Myrie
Sarah's guest is the architect, broadcaster and Anglican deacon Maxwell Hutchinson
Rob's guest this week is the film director, writer, photographer and composer Mike Figgis
Rob's guest this week is the historian and broadcaster Suzannah Lipscomb
Sarah's guest this week is the award-winning director Greg Doran
Rob's guest this week is the comedian, writer and actor, Chris Addison
Sarah's guest this week is the award-winning actress Zoë Wanamaker
Sarah's guest this week is one of the world's leading sound-recordists, Chris Watson
Rob's guest this week is the stage director, Katie Mitchell
As Radio 3 celebrates the 500th anniversary of the Protestant Reformation, Sarah's guest is the historian Ian Mortimer
Sarah's guest this week is the news journalist and presenter Jon Snow
Sarah's guest this week is the music journalist and broadcaster David Hepworth
Rob's guest this week is the American chef, author and TV presenter Ken Hom
Rob's guest this week is the astrophysicist Jocelyn Bell Burnell
Sarah's guest this week is the broadcaster, novelist and journalist Joan Bakewell
Sarah's guest this week is the author, academic and journalist Sarah Perry
Rob's guest this week is the cartoonist and illustrator Gerald Scarfe
Rob's guest this week is the newsreader, broadcaster and writer, Angela Rippon
Sarah's guest this week is the award-winning broadcast journalist Hugh Sykes
Sarah's guest this week is the columnist, broadcaster and campaigner, Mariella Frostrup.
Rob's guest this week is the former front-bench politician, Ed Balls
Sarah's guest this week is the broadcaster and writer, Clare Balding
Rob's guest this week is the woodsman, television presenter and writer, Ray Mears
Rob's guest this week is the actor, comedian, writer and broadcaster, Tony Robinson
Sarah's guest this week is the science writer and broadcaster, Vivienne Parry
Sarah's guest this week is the writer and broadcaster, Lynne Truss
Rob's guest this week is the comedian, composer and actress, Vikki Stone