I recorded Classic Rewind overnight last night. The SL2 was left on. I woke up around 5AM and noticed that I was about 8 seconds into the buffer. When I woke up the recording was still going but it showed that I was a full 60 minutes into the buffer. Once the recording stopped, I advanced the buffer to current. I checked the recording and I have a full 6 hours as scheduled. What on earth will cause the SL2 to buffer?