<Table> <Tr> <Th_colspan="2"> The Legend of Korra </Th> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Th> Genre </Th> <Td> <Ul> <Li> Steampunk / Dieselpunk </Li> <Li> Action / Adventure </Li> <Li> Science fantasy </Li> <Li> Comedy - drama </Li> </Ul> </Td> </Tr> <Tr> <Th> Created by </Th> <Td> <Ul> <Li> Michael Dante DiMartino </Li> <Li> Bryan Konietzko </Li> </Ul> </Td> </Tr> <Tr> <Th> Based on </Th> <Td> Avatar: The Last Airbender by Michael Dante DiMartino Bryan Konietzko </Td> </Tr> <Tr> <Th> Written by </Th> <Td> <Ul> <Li> Michael Dante DiMartino </Li> <Li> Bryan Konietzko (Season 1) </Li> <Li> Tim Hedrick (Seasons 2--4) </Li> <Li> Joshua Hamilton (Seasons 2--4) </Li> <Li> Katie Mattila (Seasons 3--4) </Li> </Ul> </Td> </Tr> <Tr> <Th> Directed by </Th> <Td> <Ul> <Li> Joaquim Dos Santos (Season 1) </Li> <Li> Ki Hyun Ryu (Season 1) </Li> <Li> Colin Heck (Seasons 2--4) </Li> <Li> Ian Graham (Seasons 2--4) </Li> <Li> Melchior Zwyer (Seasons 3--4) </Li> <Li> Michael Dante DiMartino (Remembrances) </Li> </Ul> </Td> </Tr> <Tr> <Th> Voices of </Th> <Td> See below </Td> </Tr> <Tr> <Th> Composer (s) </Th> <Td> Jeremy Zuckerman </Td> </Tr> <Tr> <Th> Country of origin </Th> <Td> United States </Td> </Tr> <Tr> <Th> Original language (s) </Th> <Td> English </Td> </Tr> <Tr> <Th> No. of seasons </Th> <Td> </Td> </Tr> <Tr> <Th> No. of episodes </Th> <Td> 52 (list of episodes) </Td> </Tr> <Tr> <Th_colspan="2"> Production </Th> </Tr> <Tr> <Th> Executive producer (s) </Th> <Td> <Ul> <Li> Michael Dante DiMartino </Li> <Li> Bryan Konietzko </Li> <Li> Joaquim Dos Santos (co-executive) </Li> </Ul> </Td> </Tr> <Tr> <Th> Producer (s) </Th> <Td> <Ul> <Li> Tim Yoon </Li> <Li> Ki Hyun Ryu (supervising) </Li> <Li> Lauren Montgomery (supervising) </Li> </Ul> </Td> </Tr> <Tr> <Th> Running time </Th> <Td> 23 minutes </Td> </Tr> <Tr> <Th> Production company (s) </Th> <Td> <Ul> <Li> Nickelodeon Animation Studio </Li> <Li> Ginormous Madman Productions </Li> <Li> Studio Mir </Li> <Li> Studio Pierrot </Li> </Ul> </Td> </Tr> <Tr> <Th_colspan="2"> Release </Th> </Tr> <Tr> <Th> Original network </Th> <Td> Nickelodeon (April 14, 2012--July 25, 2014) Nick.com (August 1, 2014--December 19, 2014) </Td> </Tr> <Tr> <Th> Picture format </Th> <Td> <Ul> <Li> NTSC 16: 9 (480i) </Li> <Li> NTSC 16: 9 (1080i) </Li> </Ul> </Td> </Tr> <Tr> <Th> Original release </Th> <Td> April 14, 2012 (2012 - 04 - 14)--December 19, 2014 (2014 - 12 - 19) </Td> </Tr> <Tr> <Th_colspan="2"> Chronology </Th> </Tr> <Tr> <Th> Preceded by </Th> <Td> Avatar: The Last Airbender (TV series) Avatar: The Last Airbender (comics) </Td> </Tr> <Tr> <Th> Followed by </Th> <Td> The Legend of Korra (comics) </Td> </Tr> <Tr> <Th_colspan="2"> External links </Th> </Tr> <Tr> <Th> Official website </Th> <Td> www.nick.com/legend-of-korra </Td> </Tr> </Table> <Tr> <Th_colspan="2"> The Legend of Korra </Th> </Tr>

How many seasons of legends of korra are there
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