GregP1 One final thought and you can probably put a bow on this discussion unless someone else has a follow-up comment. For future reference, you might mention that the ability to schedule recordings with the Contour app is only available with Cloud DVR, assuming that's correct. It would eliminate the need to get there by process of elimination. You posted it can be done on the app or https://watchtv.cox.com, but it doesn't work for a DVR with a hard drive, so it must only work with Cloud DVR.
Either you or the OP should mark WMO's post as the solution since he was the first to actually pickup on the Cloud DVR requirement.