This happened to me on Dec 21st, two days after I had left for my vacations. When I came back yesterday I was very disappointed to see that all the shows I was expecting to see were missing. Completely jet lagged I called DTV, and blindly followed their instructions which told me to 'Clear Program Data and To Do List.' Big mistake. I lost all my season passes and preferences, including which channels I receive, thumbs up ratings, etc.