I have my DVR set to record a show that runs in the wee hours of the morning.
A couple times a week, it works. But two or three times a week, it starts recording anywhere from one hour to three hours later. It thinks it has recorded the program, giving all the correct program guide information. But shows that it started recording at these wrong times.
Like I said... What gives?
I don't know "what gives," but you might try fixing the problem by going to the DVR's menu:
Settings > DVR > Default Series Options > Air Time. Set it to "Selected Time Only."
Once you've changed that setting delete and reschedule the series you want to record. Hopefully that will stop the recording happening at the wrong time.