Can't really help, but I have a humax PVR and I have very few problems, Very occaisionally it will miss the last minute or so of a programme, but I suspect this is caused by conflict of recording another programme due when that one is supposed to end, as even when a programme starts late OR early generally it will catch it all. As with yours it is on series link settings,as to remove that will do away with the option to start recording when the programme starts. I can't recall if you can set the time as I think this is done automatically.