After six years on the air, Sister Wives, which was once must-see TV, is struggling to keep viewers tuned in — and the family at the center of it all is falling apart!

“The series has nothing to say anymore,” an insider tells Life & Style. “So TLC was talking about replacing it.”

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Now Kody Brown's wives — Meri, Christine, Janelle and Robyn — are blaming each other for the dip in ratings.

“With the show in trouble, they’re all feeling desperate right now,” says the insider, “but instead of bonding, the wives are fighting over whose fault it is."

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The source adds, "They’ve all turned against each other… From Robyn coming between Kody and the other wives, to Meri and her whole catfish scandal."

For more insider info on all your favorite reality shows, pick up the latest issue of Life & Style, on newsstands now!

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