Tim Donaghy was a former NBA referee who not only bet on games he was officiating, but actually made calls to help out his cause. For his role in a long-going gambling scandal a federal judge sentenced him to 15 months behind bars back in 2008.

We haven’t heard much from Tim until a teaser clip surfaced for a CNBC documentary called Dishonesty: The Truth About Lies. You can watch the trailer above and the entire show premiers Thursday, May 28 at 10p ET/PT.