TCM-HD by far, IFC-HD, BBCA-HD, AMC-HD but without all the commercials, Sun Dance, and never to forget the Voom channels (World Cinema, Film Fest, Kung Fu, Monsters, and Gallery, RIP). Doc and some of the Encore and Showtime additions would be nice after these. Let's drop many of the commercial-ridden channels like Bravo, Lifetime and its Movie outlet, and even TNT with TBS only slightly less annoying in recording size.
-Ken