清华文康的视频

http://www.tudou.com/programs/view/dY23qmkfz04/

http://www.tudou.com/programs/view/L0LbzS9DGZo/

http://v.youku.com/v_show/id_XNDk1NTQ2MDg4.html

http://v.youku.com/v_show/id_XMzEzNTIxMDAw.html