2025-01-23: Nick Kroll, Britt Lower
52x08: Secrets of the Forest
52x07: Revolutionary War Weapons
52x05: Pompeii's Secret Underworld
52x02: Extreme Airport Engineering
52x01: What Are UFOs?
51x16: Building Stuff: Reach It!
49x17: Ending HIV in America
46x19: Rise of the Mammals