The King of Yesterday and Tomorrow (Chinese: 九五至尊; Jyutping: gau2 ng5 zi3 zyun1) is a Hong Kong comedy television drama produced by Siu Hin-fai and TVB.

The story begins in Qing dynasty, China with Yongzheng Emperor disguising himself among commoners to have a meal outside the imperial courts.

At the restaurant he encounters a woman named Lui Sei-leung who was under attack by loan sharks for not returning debts.

They also learn about the fall of the Qing dynasty including the rise of the 1911 Xinhai Revolution and founding of modern China through a historic TV video, which also mentioned the emperor's death was shrouded in some mystery.

The show also contains mini plots such as Ko King getting accused of carrying illegal drugs in a club, Hugo and Kenneth's homosexual relationship, and many other side stories.

"Viewers in millions" refers to the number of people, derived from TVB Jade ratings, in Hong Kong who watched the episode live.