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The Jimmy Timmy Power Hour is an American trilogy of crossover television specials between the animated television series The Adventures of Jimmy Neutron, Boy Genius and The Fairly OddParents. Consisting of The Jimmy Timmy Power Hour, the special has provided two sequels, The Jimmy Timmy Power Hour 2: When Nerds Collide! and The Jimmy Timmy Power Hour 3: The Jerkinators!. The specials premiered on Nickelodeon between 2004 and 2006, and were subsequently released to home video. They combine multiple types of animation, using 2D computer animation for the segments set in the Fairly OddParents universe and 3D computer animation for the Jimmy Neutron segments. In these specials, Timmy is sent to Retroville by wishing for the laboratory in the universe for his science project. But he meets Jimmy, who repairs his robot dog Goddard. They swap places accidentally, and things go wrong because Jimmy and Timmy miscommunicate with them. It's up to them to save the universes. The events of the crossover take place during the second and third seasons of The Adventures of Jimmy Neutron, Boy Genius and during the fourth and fifth seasons of The Fairly OddParents.