With contestants Jacqui Smith, Nathaniel Parker, Erin Boag and Jason Manford.
With contestants Sandie Shaw, Neil Dudgeon, Stewart Francis and Andrew Collins.
With contestants Rachel Riley, Wayne Hemingway, Miles Jupp and Gary O'Donoghue.
With contestants Michel Roux Jr, Jessica Hynes, Jon Sopel and Neil Hannon.
Subjects include George Orwell, Sir Francis Walsingham and The West Wing.
Subjects include Field Marshal Montgomery and chess champion Tigran Petrosian.
Subjects include the Richard Hannay novels of John Buchan and the Peak District.
Subjects: Maximilian I, The Russian Revolution, Led Zeppelin and British speedway 1945-70.
Subjects include the Scottish Enlightenment and wines of the Loire Valley.
Russell Kane, Jarred Christmas, Karen Taylor and Imran Yusuf take on the black chair.
Subjects include the life of Robert Bruce Lockhart and the siege of Malta.
John Humphrys talks to people with the most to lose if the welfare state is eroded.
With guests John Humphrys, Lisa Snowdon, Scott Mills and Brian Butterfield.