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| Season | Episodes | Originally aired | |||
|---|---|---|---|---|---|
| First aired | Last aired | ||||
| Pilot | 3 | May 7, 2001 (2001-05-07) | |||
| Shorts | 7 | July 27, 2002 (2002-07-27) | August 24, 2002 (2002-08-24) | ||
| 1 | 13 | June 5, 2003 (2003-06-05) | December 23, 2004 (2004-96-23) | ||
| 2 | 39 | July 30, 2009 (2009-07-30) | June 21, 2010 (2010-06-21) | ||
| 3 | 13 | July 5, 2019 (2019-07-05) | August 30, 2020 (2020-08-30) | ||
| 4 | 6 | August 6, 2020 (2020-08-06) | TBA | ||
| Specials | 65 | September 7, 2021 (2021-09-07) | |||
