A Slashdot post tonight points out that a recent update to the DirecTiVo operating system has induced recording errors on older Series 1 DirecTiVo units. Reports of the problems sound pretty serious, but the worst part is that the only solution appears to be upgrading to a Series 2 unit. It's currently only $79 to get a new unit, and if you push DirecTV they'll credit you the difference.
Considering how infinitely hackable Series 1 DirecTV units are compared to Series 2 units, I wonder if maybe this bug isn't being fixed to help move the subscriber base up to a more locked down unit. Seeing how the movie industry is so freaked out about video extraction, getting every series 1 TiVo user onto a series 2 box would certainly help put an end to the practice.