How many seasons of one tree hill are there?

I know that there are totally 9 seasons of the TV series One Tree Hill, but I wonder if that is it or if there are any more seasons of it?
A3: Yes, One Tree Hill DVD online sale for seasons 1-9 has finished the 9th season and the 9th season is the final season of the show! The last season of the show ended this year. It is a pity for the fans. This is really a good tv show for watching. I love the show and want to have another time watching!

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