| Name | First Aired | Runtime | Image | |
|---|---|---|---|---|
| S04E01 | Trains, Submarines and Zeppelins (1) |
December 7, 2015
PBS
|
15 | |
| S04E02 | Trains, Submarines and Zeppelins (2) |
December 7, 2015
PBS
|
15 | |
| S04E03 | Rollin' on the Riverboat (1) |
March 7, 2016
PBS
|
15 | |
| S04E04 | Rollin' on the Riverboat (2) |
March 7, 2016
PBS
|
15 | |
| S04E05 | Nest Swap |
March 8, 2016
PBS
|
15 | |
| S04E06 | The Herd is the Word |
March 8, 2016
PBS
|
15 | |
| S04E07 | Stop and Smell the Flowers |
March 9, 2016
PBS
|
15 | |
| S04E08 | Moms' Campout |
March 9, 2016
PBS
|
15 | |
| S04E09 | Where Have All the Lizards Gone? |
March 10, 2016
PBS
|
15 | |
| S04E10 | Conductor's Sleepover |
March 10, 2016
PBS
|
15 | |
| S04E11 | Junior Conductors Academy (1) |
April 6, 2016
PBS
|
15 | |
| S04E12 | Junior Conductors Academy (2) |
April 6, 2016
PBS
|
15 | |
| S04E13 | Crystal and King Benefit Concert (1) |
April 25, 2016
PBS
|
15 | |
| S04E14 | Crystal and King Benefit Concert (2) |
April 25, 2016
PBS
|
15 | |
| S04E15 |
Spooky Tree
season finale
|
October 17, 2016
PBS
|
15 | |
| S04E16 | Spinosaurus Super Model |
October 17, 2016
PBS
|
15 | |
| S04E17 | What's at the Center of the Earth? (1): Layers |
February 20, 2017
PBS
|
15 | |
| S04E18 | What's at the Center of the Earth? (2): Fossils |
February 20, 2017
PBS
|
15 | |
| S04E19 | What's at the Center of the Earth? (3): Troglobites |
February 20, 2017
PBS
|
15 | |
| S04E20 |
What's at the Center of the Earth? (4): Minerals
season finale
|
February 20, 2017
PBS
|
15 |
No artwork of this type.
No artwork of this type.
