<P> The series consists of a pilot episode, 46 episode segments, and at least 17 episodes that were in production at the time of the series' cancellation . As of August 19, 2006, all produced 46 episodes have aired on television and been released on DVD . On December 24, 2011, the pilot episode finally aired on television . 38 episode segments were originally broadcast in pairs, each 12 - minute episode segment debuting in the same half - hour . There are eight double - length episodes . This list is ordered by the episode order in the DVD releases, with broadcast dates noted . Almost every episode was directed by Steve Ressel; the only exception is the pilot, which was directed by Jordan Reichek . </P> <P> In April 2017, Nickelodeon announced that there will be a television film based on the series . </P> <Table> <Tr> <Th_colspan="2"> Season </Th> <Th_colspan="2"> Episodes </Th> <Th_colspan="3"> Originally aired </Th> </Tr> <Tr> <Th> First aired </Th> <Th> Last aired </Th> <Th> Network </Th> </Tr> <Tr> <Td> </Td> <Td_colspan="3"> Pilot </Td> <Td_colspan="2"> December 24, 2011 </Td> <Td> Nicktoons </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> </Td> <Td_colspan="2"> 20 </Td> <Td_colspan="1"> March 30, 2001 </Td> <Td> September 28, 2002 </Td> <Td> Nickelodeon </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> </Td> <Td_colspan="2"> 7 </Td> <Td_colspan="1"> December 10, 2002 (2002 - 12 - 10) </Td> <Td> August 19, 2006 (2006 - 08 - 19) </Td> <Td> Nicktoons (episodes 21--26) Nickelodeon (episode 27) </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Season </Th> <Th_colspan="2"> Episodes </Th> <Th_colspan="3"> Originally aired </Th> </Tr>

How many episodes of invader zim were made
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