"Little People, Big World" stars Matt and Amy Roloff separate

Matt and Amy Roloff of "Little People, Big World" fame are living separate lives, but still working together on the farm.

After 26 years together the reality TV couple have decided to undergo a trial separation. Their marital troubles are highlighted in an upcoming TLC special, scheduled to air March 25 at 9 p.m. ET.

In a preview clip, Matt confirms the separation, saying, "Last year it was long and tough. Amy and I had a lot of tension, so right around Thanksgiving, I thought I would move over to the bridal house for a little bit and we'll try that. I mean Amy and I stuck it out for years and years when maybe we shouldn't have."

He added that never felt "quite at home" in his own house, explaining, "Something needed to change. We needed to try something different. You can call it a separation if you want, a trial separation, but it's more just giving each other some space."

Amy said they failed to "learn to live together" even after all of these years.

"Though we have weathered many storms together, we recently made the tough decision to engage in a trial separation," the pair said in a joint statement. "Matt remains living on the farm in our guest house and we work together everyday on the farm, on our business endeavors and most importantly, raising our amazing children."

The Roloffs have four children together: twins Jeremy and Zack, 23, Molly, 20, and Jacob, 17.

Watch a preview clip of the TLC special: