VIDEO: Sneak Peek Of Controversial New Series Sister Wives

Sept. 24 2010, Published 11:00 a.m. ET

Sister Wives premieres Sunday night on TLC and everybody is talking about TV's newest reality series, and now RadarOnline.com can give you a sneak peek of an upcoming episode.

The show looks at the life of Kody Brown, his three wives (only one is legal) and their 13 children; and the changing dynamics as he prepares to bring wife # 4 and here three kids into the home.

The Brown clan says their polygamy is "faith-based" -- they're Fundamentalist Mormons -- and don't want to keep their lifestyle secret any more.