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Richard talks to Gordon Smart, Shappi Khorsandi, and asks - do aliens exist?
Tracy-Ann Oberman on her new Radio 4 drama about Joan Crawford and Bette Davis.
Phil Williams sits in for Richard with Francis Rossi from Status Quo.
Dragon Duncan Bannatyne joins Richard.
Sanjeev Bhaskar on his new play The Dumb Show plus the TV Review with Boyd Hilton.
An election special with Squeeze and Armando Ianucci.