I have not seen that, but have had the opposite where the marker on the bar went past the end time by 40 minutes on a recorded show.
I had forgot to set up Dal/TB game, got home near the end of the 3rd hit record and added 30 min. (it was tuned to that channel so the buffer was there). Later in the night I selected to play it from the list. First thing I see is a black screen, then it fast forwarded it self until the point where there was video playback and started playing. This had to be the point 90 minutes before i hit record. I clicked play to view the bar which stated the recording was 2hrs 18 min long, but ended up showing 2hrs 50min when it asked to delete or keep.
Weird.
I had forgot to set up Dal/TB game, got home near the end of the 3rd hit record and added 30 min. (it was tuned to that channel so the buffer was there). Later in the night I selected to play it from the list. First thing I see is a black screen, then it fast forwarded it self until the point where there was video playback and started playing. This had to be the point 90 minutes before i hit record. I clicked play to view the bar which stated the recording was 2hrs 18 min long, but ended up showing 2hrs 50min when it asked to delete or keep.
Weird.