Series
| Series Name | Release Date | Product Count |
|---|---|---|
| Top Secret Spy Stories | 2024-08-01 | 7 |
| Totally Disgusting | 2014-08-01 | 7 |
| Totally Not True! | 2023-08-01 | 5 |
| Totally Silly Science | 2023-08-01 | 5 |
| Tough Times to Be a Kid | 2023-08-01 | 5 |
| Tough Trucks | 2018-08-01 | 7 |
| Trade Careers | 2024-08-01 | 7 |
| Tragedy! Tales from the Titanic | 2025-01-01 | 13 |
| Treed: Animal Life in the Trees | 2013-08-01 | 9 |
| True Survival Stories | 2021-08-01 | 8 |
| Tu cuerpo maravilloso (Your Amazing Body) | 2017-08-01 | 8 |
| Turning Points in U.S. History | 2020-01-01 | 11 |
| Twice the Scare Combos! | 2015-07-01 | 9 |
| Twice the Scare Combos II | 2016-08-01 | 10 |
| Ultimate Speed | 2005-08-01 | 7 |
| Ultimate Supercars | 2019-08-01 | 31 |
| Uncharted: Stories of Survival | 2020-08-01 | 8 |
| Uncommon Animals | 2008-08-01 | 8 |
| Understanding Weather | 2015-08-01 | 8 |
| Unexplained Mysteries | 2015-01-01 | 14 |
| Unexplained, The | 2011-08-01 | 13 |
| Unplugging | 2024-01-01 | 5 |
| Unplugging Set Two | 2025-01-01 | 9 |
| Un vistazo a las arañas (An Eye on Spiders) | 2018-08-01 | 8 |