Dicey Business and Heart of Greed: Bosco and Tavia
Similarity: Bosco and Tavia are a couple and they have a wedding ceremony
Difference: In Heart of Greed, the wedding goes ahead, in Dicey Business, Bosco refuses to marry Tavia.
The Price of Greed and The Brink of Law : Kate and Shirley
Similarity: The hospital scene. Both may never wake up.
Difference: The Price of Greed scene is shown in episode 1 and they are friends, The Brink of Law– shown in last episode, Kate treats Shirley as a friend, but Shirley does not feel the same way about Kate.
The Brink of Law and On the First Beat: Ron and Kate
Similarity: Kate loves Ron.
Difference: In On the First Beat, its only a one-sided love, while they are a couple in The Brink of law. In the Brink of Law, the two play more mature characters.
Glittering Days and Heart of Greed: Susanna and Chris Lok Yi
Similarity: They play mother and son in both series.
Difference: Susanna plays an evil scheming women in Heart (including using her own son), while a kind-loving mother in Glittering. I think the difference is obvious in the screencapture above =)
The Brink of Law and Heart of Greed: Michelle Yim
Similarity: They have similar hair-style, whether dressed in formal or not.
Difference: In Heart, Michelle is a good character, while in Brink– she plays the evil villain.