MattB1 - 1 hour ago »
I've owned a number of Humax boxes, going back to Humax PVR-9200T which I think was first, and all of them have had issues with series record. The majority of the problems as Graham has pointed out is bad data from the broadcasters and nothing to do with the box itself.
I have also owned a number of different Humax boxes that support series record and my experience is that if the box is tuned to a single transmitter and recordings are from channels that support accurate recording then series recording works really well; certainly not perfect but problems are infrequent.