Subscribers at DBSTalk.com, and I experienced a blank program guide with a date of 7/14 and all shows noted as "To Be Announced." While channels continued to receive programming, any recordings were disrupted.
Callers to DirecTV report they were told the problem was fixed or being fixed and they would not lose any programming. A hard reset (or reboot) seemed to fix the problem temporarily, but eventually the guide data would disappear again. However many ToDo lists were gone. One viewer reported he had paused a basketball game while putting his kids to bed and when he came back, the prompt for deleting an episode was on the screen and the end of the game was lost.
One enterprising user identified as dragonbait on DBSTalk.com seemed to have tracked down the problem to faulty guide data coming from one satellite.
"I just forced one of my HR20s to look at channels from 103 sat by recording 2 Starz channels; therefore, it should be getting guide and potentially date/time info from 119 sat. This box's date changed to 7/14 around 11:10.
Similarly, I forced my other HR20 to get its guide data from the 101 sat by tuning it to XM channels. Its date did not change.
Therefore, it would seem that my suspicion that the 119 sat is sending the wrong date might be true. Further tests are needed to confirm."
No official posts from DirecTV had been made in the troubleshooting area of the DirecTV forums as of this posting.