Youku Tudou (NYSE: YOKU) will add 33 popular American TV dramas and variety shows to its international library by the end of 2013.

With shows from ABC, CBS, Fox, NBC, CW, and WB, Youku Tudou is looking to continue to grow its American TV content as Chinese viewership has seen explosive growth over the past years. From 2011 to 2012 alone, Youku Tudou has seen about a 400% increase in the content category. Each episode averages as many as 2.5 million people.

Included in the deal are such TV shows as "Vampire Diaries," "Modern Family," and "2 Broke Girls." These new shows join American Idol, Scandal, and the more than 20 hit TV shows Youku Tudou has imported since 2010. Youku Tudou has chosen these TV shows according to in-house content metrics and analysis. 

Youku Tudou's foreign TV expansion comes after the company struck an exclusive partnership with Hong Kong Television Broadcasts Limited ("TVB"). Announced last week, the deal sets the stage for Youku.com and Tudou.com to host more than 2,500 hours of popular TVB content each year for the next two years.