This is exactly what is said:
At about 13 minutes in Dan takes about one minute to list things he considers non-Darwinian mechanisms and causes of change. He mentions (among other things) neutral theory, exaptation, horizontal gene transfer, epigenetics, then says:
Dan: The reason I harp on this is I wanna make sure I have this crystal clear.
Dan: When we say a system has irreducible complexity - does it preclude evolution by all these mechanisms - just the ones from 1859 - just the ones from the 1940s…?
Behe: Well - I, I’m glad to say it precludes them by all those processes you just mentioned…
Dan: Okay.
Behe: …I just wanna say that, in my mind, I consider them all random changes, remember Darwin didn’t know about mutations or anything - he said random changes plus natural selection - and you got look at each of them carefully - I think neutral mutation fits happily into Darwinian evolution except that the mutation has a selection coefficient of 0 instead of a negative or a positive one - uh, so… so that doesn’t strike me as a big deal.
Behe: And gene duplication - meh that’s fine that’s one event though. Ahh so, yeah - any unguided processes.
Dan: Alright, any unguided pro…(?)
Behe: Nods
Dan: Okay, any unguided processes!
Behe: Right.