I just finished What Happens to My Family, would not recommend it (depressing, and adult children are awful at the start).
Five Children -(54 eps) - family drama about the romance of a widower with two young children and a divorcee with three, his parents and siblings, her ex and his new wife. They work in the same department. He lives with his late wife's well-off family. There is a side couple that shouldn't work but does (the ML's shy elementary school teacher sister and an athlete/male model).
Father Is Strange - also a long family drama. Four adult children live with their parents, a close late 50s couple who run a sandwich store. A not-very-successful but egotistical actor appears one day and claims that he is the man's son from a long-ago relationship.
It might help to know the general age of your parents.