Finally.......I get the best out of my AV equipment & HD Tv
Full HDMI set up now & boy can you tell the difference, even with the quality of the SD picture.
For what it's worth, the engineer arrived at 12:10 & did the following:
Swapped out my Sky+ box for the HD box in the lounge & started the software download.
Ran a new dual co-ax from the dish to the opposite side of the house into the bedroom to replace the single one in there previously hooked up to the old Grundig Sky digi box. He then swapped out the Grundig for the Sky+, tested the box etc etc.
Then back to the lounge to pair the card from the old Grundig with the HD........He tried to do it with his new fangled all in one hand held phone, PC, bar code scanner.......That didn't work so he tries to get through on the phone, it took him 20 minutes to get through (I did offer him the 0800 number but he declined

)
He left at 13:50, so he spent 1hr 40mins on site, did a cracking job & for £60 I think I got value for money