I wouldn't hold my breath for a balanced discussion if I were you.  He really has mainstream tendancies and uses the show to promote his own agenda.  The home schooling show he taped never ran because one of the mothers outed him on the internet about how he slanted the show against homeschoolers...in ways like bringing in school buses full of high school students to fill the audience, and only "inviting" about a dozen homeschooling parents (while specifically telling them not to bring any kids).  The show got so much negative feedback from homeschoolers before it even aired that they yanked it from the line-up.

Given that his wife got the epidural as soon as she hit the door, I doubt it'll be a very fair "debate."