manaia: A new software version 2.1.0.2 for the MySKY HDi went out last night. It should improve/fix the problem with lockups when three tuners are recording.
One feature of the new software seems to be new copy protection of SD SVideo outputs of HD material both from the scart and SVideo outputs of MySky HDi. That is my DVD recorder won't allow recording of either any current TV3 broadcasts or previously HDi recorded TV3 shows from a month ago, recorded before the update. Similarly Movie channels won't allow external recording at all, but so far Sky sport seems to record so when my MySky HDD fills up at least I can time shift that to DVD.