This is an issue similar (if not identical) to http://forums.cox.com/forum_home/tv_forum/f/4/t/3640.aspx, and entirely different from all of the questions posted about shows getting 1-2 minutes clipped at the end.
On two occasions in the last week, and at least one prior to that, I've had shows with NO conflicts stop recording after 15-20 minutes (for hour-long programs). This is on different days, times, and multiple channels (FX and BBC America).
I can't help but suspect that this is going to be blamed on the fact that I haven't upgraded to Contour service (at additional cost, of course). Anyone else having similar problems?