I upgraded last night to 0x115, but I watched the start of the game in HD. There were definitely times when the system would NOT respond as I predicted. Many, but not all of the Trick Play functions were simply not responding. Some worked - I could press the PLAY button to get the timeline bar to popup or go away, but not much else. I got out of this problem by changing the channel and coming back. However, I fully expected it to mess up again after being on the channel for a short period.
It is possible that this type of problem is what caused the recording to fail. I've left my HR20 on ESPN-HD since last night and hope to check sometime today to see if it is locked up (as I'm sure it would have been in 0x10b).