Atheist Matt Dillahunty has debated Christian apologist Matt Slick of Christian Apologetics Research Ministry (CARM) in at least three different instances over the last seven years. I thought I post them on here for the sake of convenience of anyone looking for them.
The first one is from 2009 for the Atheist Experience:
The second one is from the Bible Thumping Wingnut Show
The third debate is the most recent one. It took place on October 2nd, 2016 and the two debated the question “Is Secular Humanism superior to Christianity?”