Sara Pascoe is joined by comedians Rhys James, Huge Davies and Sally Phillips, who compete to deliver the best lecture. Rhys's lecture is 'I Stalk Strangers Online', Huge's is 'What Every Pro Musician Needs To Know' and Sally's is 'The Power of Uncertainty'.

Sara Pascoe is joined by comedians Paul Sinha, Kiri Pritchard-McLean and Tim Renkow, who compete to deliver the best lecture. Paul's lecture is 'The Art Of Quizzing', Kiri's is 'Everyday Sexism' and Tim's is 'How To Teach Kids About Taboo Topics'.