Thanks for the response but unless I'm missing something, adding the contents of the 2 smartlists to a playlist means that I'd have to do that manually every time which defeats the object of using dynamic smartlists.
What I want is a way for this to be automated if possible so that every time I sync my ipod, my new super smartlist has an updated list of podcasts with all the unlistened to episodes of one particular program at the top in date order and then all the other unlistened to podcasts after that in date order. I have two smartlists that create the building blocks of that. I want to be able to combine them without the contents of the two seed smartlists being reordered in any way.
Is that possible?