• Lesson 1: Finding Fossil Man
• Lesson 2: Spare That Spider
• Lesson 3: Matterhorn Man
• Lesson 4: Seeing Hands
• Lesson 5: Youth
• Lesson 6: the Sporting Spirit
• Lesson 7: Bats
• Lesson 8: Trading Standards
• Lesson 9: Royal Espionage
• Lesson 10: Silicon Valley
• Lesson 11: How to Grow Old
• Lesson 12: Banks and Their Customers
• Lesson 13: the Search for Oil
• Lesson 14: the Butterfly Effect
• Lesson 15: Secrecy in Industry
• Lesson 16: the Modern City
• Lesson 17: a Man-Made Disease
• Lesson 18: Porpoises
• Lesson 19: the Stuff of Dreams
• Lesson 20: Snake Poison
• Lesson 21: William S. Hart and the Early 'Western' Film
• Lesson 22: Knowledge and Progress
• Lesson 23: Bird Flight
• Lesson 24: Beauty
• Lesson 25: Non-Auditory Effects of Noise
• Lesson 26: the Past Life of the Earth
• Lesson 27: the 'Vasa'
• Lesson 28: Patients and Doctors
• Lesson 29: the Hovercraft
• Lesson 30: Exploring the Sea-Floor
• Lesson 31: the Sculptor Speaks
• Lesson 32: Galileo Reborn
• Lesson 33: Education
• Lesson 34: Adolescence
• Lesson 35: Space Odyssey
• Lesson 36: the Cost of Government
• Lesson 37: the Process of Ageing
• Lesson 38: Water and the Traveller
• Lesson 39: What Every Writer Wants
• Lesson 40: Waves
• Lesson 41: Training Elephants
• Lesson 42: Recording an Earthquake
• Lesson 43: Are There Strangers in Space?
• Lesson 44: Patterns of Culture
• Lesson 45: of Men and Galaxies
• Lesson 46: Hobbies
• Lesson 47: the Great Escape
• Lesson 48: Planning a Share Portfolio