The Lifetime made-for-TV Drew Peterson movie Untouchable brought in the ratings on Saturday night.
The network said 5.8 million viewers watched the docu-drama, making it cable's most watched original movie in the last two years.
Peterson watched the movie, and he called it “hysterical.”
In Untouchable, Rob Lowe played Peterson and Kaley Cuoco played Stacy Peterson, his missing fourth wife.
Drew Peterson is in jail awaiting trial for charges in the murder of his third wife, Kathleen Savio.