<P> Hey Arnold! is an American animated television series created by Craig Bartlett that aired on Nickelodeon from October 7, 1996 to June 8, 2004 . The show centers on a fourth grader named Arnold, who lives with his grandparents in an inner - city boarding house . A total of 100 episodes aired over the course of 5 seasons . Hey Arnold!: The Movie, a feature - length film based on series, was released theatrically on June 28, 2002 . Hey Arnold!: The Jungle Movie, a television film based on the series, is scheduled to premiere on November 24, 2017 . </P> <Table> <Tr> <Th_colspan="2"> Season </Th> <Th> Episodes </Th> <Th_colspan="2"> Originally aired </Th> </Tr> <Tr> <Th> First aired </Th> <Th> Last aired </Th> </Tr> <Tr> <Td> </Td> <Td_colspan="2"> Pilot </Td> <Td_colspan="2"> March 1, 1994 (1994 - 03 - 01) / July 10, 1996 (1996 - 07 - 10) </Td> </Tr> <Tr> <Td> </Td> <Td> </Td> <Td> 20 </Td> <Td> October 7, 1996 (1996 - 10 - 07) </Td> <Td> February 14, 1997 (1997 - 02 - 14) </Td> </Tr> <Tr> <Td> </Td> <Td> </Td> <Td> 19 </Td> <Td> September 21, 1997 (1997 - 09 - 21) </Td> <Td> January 18, 1998 (1998 - 01 - 18) </Td> </Tr> <Tr> <Td> </Td> <Td> </Td> <Td> 20 </Td> <Td> August 31, 1998 (1998 - 08 - 31) </Td> <Td> March 8, 1999 (1999 - 03 - 08) </Td> </Tr> <Tr> <Td> </Td> <Td> </Td> <Td> 17 </Td> <Td> March 10, 1999 (1999 - 03 - 10) </Td> <Td> December 11, 1999 (1999 - 12 - 11) </Td> </Tr> <Tr> <Td> </Td> <Td> 5 </Td> <Td> 24 </Td> <Td> March 4, 2000 (2000 - 03 - 04) </Td> <Td> June 8, 2004 (2004 - 06 - 08) </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="2"> Theatrical film </Td> <Td_colspan="2"> June 28, 2002 (2002 - 06 - 28) </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="2"> Television film </Td> <Td_colspan="2"> November 24, 2017 (2017 - 11 - 24) </Td> </Tr> </Table>

How many seasons are there of hey arnold