Sye appeared on Justin's podcast to discuss presuppositional apologetics. It appeared that this particular episode was arranged in order to discuss Justin's lecture on presuppositional apologetics. However, while some of this was discussed, the two spent more time debating the issues in general.
I must say that this is one of the best encounters i've heard on this topic; probably as good, if not better, than Sye's first interaction with Paul Baird on unbelievable. This was a fast paced contrasting of positions in a near hour of non-stop cross examination from both sides. While I thought that Sye kept his demeanor at a very patient level, I was a bit disappointed with Justin's performance as he seemed annoyed and frustrated throughout the exchange.
Sye has also informed me that Justin's recording was edited. I have yet to listen to the unedited version, but will make it available once Sye grants permission or posts in publicly. At the least, there is supposed to be a transcript of the unedited recording forthcoming.
To listen to the "edited" version of the exchange, go HERE.