<Tr> <Td> </Td> <Td> 9 </Td> <Td> TBA </Td> <Td> April 21, 2017 (2017 - 04 - 21) </Td> <Td> 2018 (2018) </Td> </Tr> <Tr> <Td> </Td> <Td> Shorts </Td> <Td> 10 </Td> <Td> July 10, 2012 (2012 - 07 - 10) </Td> <Td> TBA (TBA) </Td> </Tr> <P> Since its debut, Adventure Time has been a ratings success for Cartoon Network . In March 2013, it was reported that the show averaged roughly 2 to 3 million viewers an episode . According to a 2012 report by Nielsen, the show consistently ranked first in its time slot among boys aged 2--14 . The show premiered on April 5, 2010, and was watched by 2.5 million viewers . The episode was a ratings success . According to a press release by Cartoon Network, the episode's time slot saw triple - digit percentage increases from the previous year . The program was viewed by 1.661 million children aged 2--11, which marked a 110 percent increase from the previous year's figures . It was watched by 837,000 children aged 9--14, a 239 percent increase on the previous year's figures . </P> <P> Between the second and sixth seasons, the show's ratings continued to grow; the second - season premiere was watched by 2.001 million viewers, the third - season premiere by 2.686 million, the fourth - season premiere by 2.655 million, the fifth - season premiere by 3.435 million, and the sixth - season premiere by 3.321 million . The show's seventh - season opener took a substantial ratings tumble, being watched by only 1.07 million viewers . Likewise, the eighth - and ninth - season premieres were watched by only 1.13 and 0.71 million viewers, respectively . </P>

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