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Episode Details & Credits
| PBS | Air Date: February 20, 2017 |
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Season 4 Episodes
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S4:E22. The Egg Stealer?; Old Reliable
Air Date: March 2, 2017
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S4:E22. Sunrise, Sunset; Gilbert Visits the Nest
Air Date: March 30, 2017
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S4:E22. Rafting
Air Date: October 4, 2018
Seasons & Episodes
- Series Overview
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Season 5
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Season 5 Overview
Air Date: August 26, 2019
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Season 5 Overview
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Season 4
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Season 4 Overview
Air Date: March 10, 2018
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S4:E22. The Egg Stealer?; Old Reliable
Air Date: March 2, 2017
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S4:E22. Sunrise, Sunset; Gilbert Visits the Nest
Air Date: March 30, 2017
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S4:E22. Rafting
Air Date: October 4, 2018
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S4:E21. What's at the Center of the Earth? Minerals!
Air Date: February 20, 2017
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S4:E20. What's at the Center of the Earth? Troglobites!
Air Date: February 20, 2017
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S4:E19. What's at the Center of the Earth? Fossils!
Air Date: February 20, 2017
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S4:E18. King Meets Crystal; All Kinds of Families
Air Date: January 12, 2017
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S4:E18. What's at the Center of the Earth? Layers!
Air Date: February 20, 2017
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S4:E17. Spinosaurus Super Model
Air Date: October 17, 2016
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S4:E16. Spooky Tree
Air Date: October 17, 2016
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S4:E15. Sunrise, Sunset; Gilbert Visits the Nest
Air Date: September 8, 2016
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S4:E15. Meet the Grandparents; To Grandparents' Nest We Go
Air Date: September 22, 2016
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S4:E14. Crystal and King Benefit Concert: Part Two
Air Date: April 25, 2016
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S4:E13. Crystal and King Benefit Concert: Part One
Air Date: April 25, 2016
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S4:E12. Junior Conductors Academy: Part Two
Air Date: April 6, 2016
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S4:E11. Junior Conductors Academy: Part One
Air Date: April 6, 2016
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S4:E10. Conductor's Sleepover
Air Date: March 10, 2016
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S4:E9. Where Have All the Lizards Gone?
Air Date: March 10, 2016
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S4:E8. Moms' Campout
Air Date: March 9, 2016
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S4:E7. Stop and Smell the Flowers
Air Date: March 9, 2016
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S4:E6. The Herd Is the Word
Air Date: March 8, 2016
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S4:E5. Nest Swap
Air Date: March 8, 2016
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S4:E4. Rollin' on the Riverboat: Part Two
Air Date: March 7, 2016
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S4:E3. Rollin' on the Riverboat: Part One
Air Date: March 7, 2016
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S4:E2. Trains, Submarines and Zeppelins
Air Date: December 7, 2015
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S4:E1. Trains, Submarines and Zeppelins
Air Date: December 7, 2015
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Season 4 Overview
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Season 3
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Season 3 Overview
Air Date: January 20, 2014
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Season 3 Overview
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Season 2
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Season 2 Overview
Air Date: August 22, 2011
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Season 2 Overview
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Season 1
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Season 1 Overview
Air Date: September 7, 2009
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Season 1 Overview