The Boo Boo clan closed out their second season Wednesday night on TLC in front of their largest audience yet.

Nielsen estimates that the hourlong season finale of “Here Comes Honey Boo Boo,” featuring a commitment ceremony between matriarch June and her longtime partner Sugar Bear, averaged 3.21 million viewers — beating the previous high set with the “A Very Boo Halloween” special in January (3.08 million).

The “Happily Ever After?” episode was also up a big 64% from last week’s “Stress Poops” episode (1.96 million) and becomes TLC’s most-watched program since last November’s “Breaking Amish: The Shunning Truth Part 1.”

TLC has yet to announce a third season of “Honey Boo Boo,” though the strong ratings for its season finale would suggest that the show will be back in some form.