The Fairly OddParents included  crossover episodes that premiered between which years?
The Fairly OddParents (season 4):  The second movie, "Channel Chasers" aired in the summer of 2004, and for the 4th time, 2 Nicktoons make crossovers in "The Jimmy Timmy Power Hour". The Jimmy Timmy Power Hour:  The films premiered on Nickelodeon between 2004 and 2006, and were subsequently released to home video.
2004 and 2006