The other night, my wife was watching an episode of a show that we had previously recorded. It was the earliest of five episodes we had stored. Coincidentally, we also had the season pass set to "keep at most" 5 episodes. In the middle of watching this episode, the HR20 began to record another episode of the same show (what would have been the sixth). Without warning, the episode she was watching disappeared ("poof", according to her). Technically, the HR20 is correct. It began recording the new episode and deleted the oldest one to make room. On the other hand, it would be nice if it popped up a box asking if we wanted to record (deleting the current episode) or to skip recording (preserving the current episode). The analogy would be the "pop-up" that occurs when you go to change the channel while it is already recording.