In 1976, he joined TVB on a contract and began to gain recognition for acting in television drama series produced by the TV station.

In 1976, Lau rose to fame for his portrayal of the titular character in Luk Siu-fung, an adaptation of Wuxia writer Gu Long's novel series of the same title.

He worked with Michelle Yim, as the male and female leading actor/actress respectively, in a number of TV series in the 1980s, including Fatherland, Chronicles of the Shadow Swordsman and Rise of the Great Wall.

[3] The following year, Lau worked on Hard Fate, a controversial TV series that received many complaints from viewers for its suicide scenes.

In the series, Lau played Leung Pak-yin, an originally morally upright and ambitious company boss who became a desperate, deranged and almost insane man after experiencing many fateful incidents.

[4] In 2007, Lau played a family patriarch in The Drive of Life, a 60 episodes grand production by TVB and mainland China's CCTV.