This clip is epic. I believe it is the opening episode of Season 3 of iPartment. The paradied characters are Hattori Hanzo, Dongfang Bubai, Lu Bu, and Diao Chan. I do not know who Hattori Hanzo is, but I recognize Dongfang Bubai from one of Jin Yong's novels and Lu Bu is from Romance of the Three Kingdoms.

Ai Qing Gong Yu or Love Apartment is a Chinese sitcom that is a ripoff of American Friends. I have heard jokes are also taken from Big Bang Theory, but I never watched that. It is pretty enjoyable to watch. The series revolves around a group of friends who all live in Ai Qing Gong Yu and their love and life entanglements.