Season 4 poster

Season 4

20 episodes October 1, 2017

Episodes

1 Lance Armstrong Oct 1, 2017 No ratings 2 Kareem Abdul-Jabbar Oct 8, 2017 No ratings 3 Jane Goodall Oct 15, 2017 No ratings 4 Katie Couric Oct 22, 2017 No ratings 5 Kevin Smith Oct 29, 2017 No ratings 6 SciFi Meets National Defense Nov 5, 2017 No ratings 7 Katy Perry Nov 12, 2017 No ratings 8 Sylvia Earle, Fabien Cousteau & Adrian Grenier Nov 19, 2017 No ratings 9 James Cameron Nov 26, 2017 No ratings 10 Celestial Navigation Dec 3, 2017 No ratings 11 Salman Rushdie Dec 10, 2017 No ratings 12 Interstellar Space Travel Dec 17, 2017 No ratings 13 Alan Alda Jan 7, 2018 No ratings 14 Stephen Colbert Jan 14, 2018 No ratings 15 True Story of Hidden Figures Jan 21, 2018 No ratings 16 Sam Harris and the Science of Belief Jan 28, 2018 No ratings 17 Frank Oz and the Science of Puppeteering Feb 4, 2018 No ratings 18 Kelly Slater and the Science of Surfing Feb 18, 2018 No ratings 19 Astronaut Scott Kelly Feb 25, 2018 No ratings 20 Stephen Hawking Mar 4, 2018 No ratings