I just installed a new Roamio Pro last night and recorded a few sample shows to start learning how to do things with the Tivo vs. DTV DVRs. This morning I still had around 440 HD hours left to record and one of the shows I recorded last night had a yellow mark next to it starting it was about to be deleted. How is this possible with 440 HD hours left?? I did set it up as keep until it needs the space, but with 99% space left, I don't understand why it would start to even attempt to delete a show so soon. Am I doing something wrong or is this perhaps a bug? Thanks in advance.