Six months ago I asked here what Tyler Cowen and I should discuss on Blogging Heads TV. I got sick on our scheduled day, but we are finally on again for Tuesday. Your suggestions from before are fine, but an awful lot has happened since – not quite 28 Days Later scale, but a lot. So I thought I'd ask again; Tyler also asked at Marginal Revolution.
Also, March 24 I will debate Bryan Caplan at GMU on "Liberty vs. Efficiency." What a fun month!
I hear this has now been performed. An upload is due soon, perhaps.
I think it would be a useful pissing contest if you both did a portion where you attempt to expose areas where the other is most vulnerable to ideological capture. It's a weird and limiting phenom to me, even on our brightest minds. If you wanted to go more meta, maybe explore your knowledge and intuitions about the tension between how ideology bounds epistemological activity, and how it may contribute to the animal spirits driving epistemological activity.