how many seasons does this show have?
13
South Park
From its debut in 1997 to the season twelve finale in 2008 the series had been natively produced in 480i standard definition. In 2009, the series switched to being natively produced in 1080i high definition with the beginning of the thirteenth season. Since this, all seasons originally produced in standard definition with 4:3 aspect ratio have been remastered by South Park Studios, being fully re-rendered in 1080i 16:9 high definition. 
is stan the main character in south park Yes, he is. who are the other characters? Kyle Broflovski, Eric Cartman, and Kenny McCormick. is this a movie or tv series? An American animated sitcom what's a sitcom? A sitcom, clipping for situational comedy, is a genre of comedy centered on a fixed set of characters who carry over from episode to episode. is the original show animated? Yes, it is animated.
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South Park [SEP] Re-rendered episodes
From its debut in 1997 to the season twelve finale in 2008 the series had been natively produced in 480i standard definition. In 2009, the series switched to being natively produced in 1080i high definition with the beginning of the thirteenth season. Since this, all seasons originally produced in standard definition with 4:3 aspect ratio have been remastered by South Park Studios, being fully re-rendered in 1080i 16:9 high definition. The re-rendered versions were also released on Blu-ray. Several of the re-rendered episodes from the earlier seasons have their original uncensored audio tracks; they had previously been released in censored form.