With so much talk in the forums recently about the awesomeness that is Advanced Passes I thought it might be time to resurrect this feature request. Its been mentioned in other threads too, but only briefly as those threads either continued on their OP or just ignored the "source" option suggestion, or just suggested using specific channels.
In my use case I was thinking of making an Advanced Pass that would find new prime time half hour comedies on the broadcast networks in my area. Of course I could always filter the individual channels I wanted to select from. And that will work fine with what I want to do. But... the first thing I though of was "maybe all I need to do is select my HDHR Prime source as that only has my locals (everything else on it is DRM)". So in my case it would be something like Source -> Contains 1324B7E9. Yeah, in my case this can be done by specifying channels, but I have seen some other places where people would also like to target the source and I figured it wouldn't hurt to suggest it again.