The other night the record indicator on one of my HR 20-700's turned red from yellow while I was watching another channel (not the program being recorded). There was no indication on screen that anything out of the ordinary was occuring. The red indicator lasted about 60 seconds and then turned back to normal yellow. I checked the status of the box in the in system info and found nothing wrong. (normal temp. no record conflicts etc.) I went to the manual on line and found no reference to this red light "feature". Anybody got any ideas? Thanks!