
Catherine Tsang (曾勵珍), also known as Sister Tsang (珍姐), is a Hong Kong television director. She began her entertainment career in the early 1970s as a radio broadcaster for Hong Kong Radio Station. She joined TVB in 1974, starting as an assistant director, then working as a director and was later promoted to Deputy Director of the Drama Division.

The sitcom depicts a fictional street in Hong Kong and the inhabitants of two households in the same building. The "Chen Family" lives on the first floor, comprising the landlord, his wife, their eldest son & daughter-in-law, and their youngest son. The "Xu Family" are their tenants - the father, his daughter, and a pet bird. The show reflects various facets of life in the city, such as government allowances for seniors, subway gate regulations, stock trading, theft, beggars, gambling, and daily...

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