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

dvdsea

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?

Yeah! It is true that 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!
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Source: http://www.easterbunny.com/forums/viewtopic.php?f=8&t=5436