Well Mysky HDi installed at lunchtime, installer unconnected my old standard sky decoder and attached my new HD unit,(no new cables from LNB etc)
 I had multiroom before with Mysky SD which I have kept. Both units are in cabinet under lounge plasma where I have splitters to send to bedrooms & Kitchen which have remote extenders.
Picture looked great, especailly Tour de France highlights from last stage in Paris on Sport 1

PROBLEM - HD remote is exactly the same as the Mysky one so if you use it both units change - @#%$#

SOLUTION - Have had to tape over Mysky infrared window locking in remote extender infrared transmitter so it does not get signal meant for HDi but now will have to watch programs saved on old Mysky either in bedroom or watch in lounge but run back and forward to bedroom to control it. LOL