Two Most Honorable Knights (1988)

Both are based on the same novel by Gu Long. The story is about a pair of twin brothers who were separated from each other at birth and raised under different circumstances. The twins first see each other as enemies but gradually become friends and eventually acknowledge each other as brothers.

The 1998 TVB version was starring Tony Leung and Hugo Ng and was the popular back then.

They are from the same story by Gu Long. This 1989 TVB version starring Tony Leong and Hugo Ng was one of the earliest popular version. Tony Leong was Xiao Yu Er even before Andy Lau's movie adaptation in 1992.

It is the same story by Gu Long. After TVB's version starring Tony Leong and Hugo Ng came out in 1988, the movie adaptation altered version was released and headed by Andy Lau and Brigitte Lin as the disguised male character -HMQ.