Why is Fu Ming's son surnamed Jia in the TV series I Love My Family?

Because Fu Ming's original name is Jia.

I love the story of my family?

In the 1990s, in an ordinary living area in old Beijing, there lived an ordinary old Jia family. Lao Ming (Wen Xingyu), the head of the family, is a veteran cadre who has participated in the revolution. After retirement, he is still a bureaucrat, but today, with the rise of commodity society, his words and deeds seem a bit out of place and ridiculous. Jia Zhiguo (Yang Lixin), the eldest son who works in an office, and Heping (Song Dandan), his wife who works in a Quyi Troupe, are raising their lovely daughter Yuan Yuan (Guan Ling). Together with his second son, Zhi Xin (Tian Liang), who is doing nothing, and his little babysitter (Shen Chang), who often makes trouble, he staged a hilarious and lovely story in this busy family. Their joys and sorrows are ordinary, which is a true portrayal of every China person living in this ancient land. ...

This play is China's first sitcom.

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