How many seasons of the show The Big Bang Theory have there been?

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I am watching the first season of the big bang theory but I think I am addicted into the show! I want to know how many seasons there are of the show. Is it too long for me to watch?

A1: Yeah! It is true that The Big Bang Theory DVD is a good show for watching. It makes me happy. The big bang theory has been finished the 5th season and now it is on the 6th season! I love the show. Watching the show is a good choice during the leisure time!

comes from: http://ronnyjohn9.blog.com/2013/02/25/how-many-seasons-of-the-show-the-big-bang-theory-have-there-been/

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