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Series 15

Episode 4

John Lloyd and Alice Levine with Dr Eugenia Cheng, Ian Hislop and Josh Widdicombe.

• 28 mins

Series 15

Episode 5

John Lloyd and Alice Levine with Ken Cheng, Theo Fennell and Jo Frost.

• 28 mins

Series 15

Episode 6

John Lloyd and Alice Levine with Ade Adepitan, Dr Sarah Beynon and Hannah Gadsby.

• 28 mins

Series 16

Episode 1

John Lloyd and Holly Walsh with Jamie MacDonald, Jennifer Higgie and Francis Hamel.

• 28 mins

Series 16

Episode 2

John Lloyd and Holly Walsh with Evelyn Mok, Dr Alun Withey and Allan Scott.

• 28 mins

Series 16

Episode 3

John Lloyd and Holly Walsh with Jon Culshaw, Rosie Jones and Elisabeth Robinson.

• 28 mins

Series 16

Episode 4

John Lloyd and Holly Walsh with Griff Rhys Jones, Mary Roach and Lemn Sissay.

• 28 mins

Series 16

Episode 5

John Lloyd and Holly Walsh with Catherine Bohart, Elizabeth Day and Bruce Dickinson.

• 28 mins

Series 16

Episode 6

John Lloyd and Holly Walsh with Daliso Chaponda, Dr Sabrina Cohen-Hatton and Dr Kevin Fong

• 28 mins

Series 17

Episode 1

John Lloyd and Anna Ptaszynski with Bill Liao, Miriam Margolyes OBE and Chris McCausland.

• 28 mins

Series 17

Episode 2

John Lloyd and Anna Ptaszynski with Rosie Holt, Olivia Potts and Professor Carlo Rovelli.

• 28 mins

Series 17

Episode 3

John Lloyd and Anna Ptaszynski with Polly Morgan, Randall Munroe and Steve Nallon.

• 28 mins

Series 17

Episode 4

John and Anna return with Alasdair Beckett-King, Dame Sarah Storey and Hannah Rose Thomas.

• 28 mins

Series 17

Episode 5

John Lloyd and Anna Ptaszynski with Isabel Hardman, Alfie Moore and Dr Jessica Wade.

• 28 mins

Series 17

Episode 6

John Lloyd and Anna Ptaszynski with Sikisa, Bridget Nicholls and Levison Wood.

• 28 mins