Ramblings Radio 4, 3pm

Clare Balding (right) joins historian

Matthew Green for a walk around

Winchelsea in

East Sussex, beginning with the possible site of a city that was lost to the waves during the medieval era.

Drama: Our Friends In The North

(Radio 4, 2.15pm) has reached 1966, and Mary and Tosker’s marriage is showing signs of strain – as is their new flat. Meanwhile, Nicky is growing disilliusioned and Geordie gets a job working for a London porn baron.

In the Radio 3 Lunchtime Concert

(Radio 3, 1pm) violinist James Ehnes and pianist Andrew Armstrong perform chamber music with the Benedetti Elschenbroich Grynyuk Trio.