By Lynette Rice
August 06, 2010 at 04:44 PM EDT

The cable network that doesn’t shy away from controversial newsmakers (Kate Gosselin, Sarah Palin’s upcoming Alaska docu-series) is about to dip its toe into even trickier waters – polygamy. TLC announced today that it has picked up a seven-part series called Sister Wives that will follow a Utah polygamist named Kody Brown and his three (though soon-to-be-four) wives and their many children. The show will bow Sept. 26 .

The series begins with Brown announcing plans to take on another wife and her three kids – and apparently, the news is met with mixed feelings. The sister wives are Meri (the first wife), who is 39 with one daughter, age 14;  Janelle (second wife), who is 40 with six children under 15; Christine (third wife) who is 37 with five children under 14 and one on the way; and Robyn, 31, the soon-to-be fourth wife with three children from another husband. Her children are under the age of 10.

All the children with the first three wives were fathered by Kody Brown; The family has been together for 16 years. TLC says the children will appear in the series, though the focus will be on the relationship between the wives.

Sister Wives is from Figure 8 Films, the production company that’s responsible for TLC’s Kate Plus 8 and 19 Kids and Counting.