Yesterday our cable box went on the fritz. It's the kind with the built-in DVR. The crack tech folks at Time-Warner couldn't help me revive it, so today I had to take it in and trade it for a new one. That means I lost the first two episodes of Heroes, which I'd intended to watch this weekend, and some other things as well. The moral of the story is, don't plan to save anything you record on a DVR. You can lose it all too easily.