There have been some hilarious and/or dramatic television series based on, or featuring some of the most mmessed up family situations. Sometimes there are long lost family members that turn up seasons later, others are dysfunctional because of their most disturbed characters, and some are messed up because of their most troublesome family members.
http://www.ranker.com/list/best-current-tv-show-with-the-most-messed-up-families/lanayoshii,
Modern Family
Teen Wolf
Shameless
Arrow
Ray Donovan
The Americans
Bates Motel
Better Call Saul
Black-ish
The Grinder