The deal is £149 + £60 installation if you buy a telly over £169.00
This is split,£30 to Currys/Comet and £179 to SKY.
HOWEVER !
There are umpteen reports on digital forums saying that people have successfully convinced the shops to sell them the HD box without a TV !
Theoretically,everyone scores.
Currys/Comet still get their £30.00
SKY still get their £179 and their new subscriber.
SKY certainly don't get told whether you actually buy a telly or not,so they don't give a monkeys.
I suppose the only thing the shop loses is the profit on the TV.
But if you put it to them that it's their £30 from SKY or nothing....
No harm in trying,if you have the balls !