Looking for a TV series that aired on Phoenix Chinese Channel during dinner time in 1990, about Feng Shui fighting.

"Reinventing Prosperity"?

Look at the plot introduction:

The promising young man Pan Wen (Deng Haoguang) was taught by his grandfather Pan Botong (Xia Chunqiu), and he has a little knowledge of Feng Shui and numbers, and he can calculate The younger brother did not die young and is still alive. It turned out to be Qian Rixi (Jiang Hua), the flamboyant son who violently pursued his girlfriend Shun (Ng Yong-wai). Xi Zhi's adoptive father Qian Zuxiang (Yang Zelin) was defeated in the shopping mall competition. In order to regain everything, Xi used all means to attack Shun's father's company, and at the same time deceived Shun into marrying him. In the process, Tong was killed and his biological father Lin (Kaohsiung) was imprisoned. Xi is eyeing Hong Kong's Dragon Vein and wants to occupy the blessed land and seize the benefits. Wen steps forward and uses his Feng Shui skills to try to curb Xi's ambition. The two brothers confront each other and conflicts arise one after another.