| Episode Number and Title | Children of this Episode | Parent |
|---|---|---|
| View Tree - 81314 : A Tennis Ball Machine On The Two Lane Road | 81320, 81321, 81322, 81323, 81324, 81325, 81326, 81327, 81328, 81329 | 81279 |
| Episode Number and Title | Children of this Episode | Parent |
|---|---|---|
| View Tree - 81325 : The World's Most Powerful Tennis Ball Machine | 81347, 81348, 81349, 81350, 81351, 81352 | 81314 |
| Episode Number and Title | Children of this Episode | Parent |
|---|---|---|
| View Tree - 81351 : BALL PROBLEMS | 81371, 81372, 81373, 81374, 81375, 81376 | 81325 |