Does anybody actually know what is (not) being done when a Roamio is stuck on the "Acquiring Channel Information" screen with 75% complete? My new Roamio had previously been stuck on 50% and Tivo support told me to call my cable company and get them to send a tech. So after I got off the phone with my appointment scheduled, for fun, I did the full factory reset and repeated Guided Setup. Now I'm stuck on 75%. So I infer the 50% mark meant that the cable card and guided setup were not in agreement (which I wish Tivo support would have said, or told me to repeat setup, but oh well) So: what does 75% complete need in order to complete? Does anybody know?