Right. Bad choice of words. There was an EHD "grouping?" of "Underground Marvels." If from the main EHD listing, you press RED you can then Manage Recordings. Select that group. Press 6 to transfer. Next page gives you the option to press TRANSFER. But nothing happens. But then I noticed the top of the screen says something about zero selected. Yet that group has a big checkmark over it.
So from the main EHD listing (DVR, External Drive 1) select and enter the "Underground Marvels" group. Press RED button. Manage recordings. Pick 1-3 episodes and hit 6 to transfer. At next screen, press TRANSFER. It works.