Apologies if this has already been posted, but I see Sky are running an Introduce a Friend offer where both parties get a free Sky+ box. The existing customer pays £60 installation and the new customer pays £30 installation. But what they don't advertise is that you can upgrade to Sky HD instead of Sky+ by paying £99 + installation. That represents a saving of £150 as against the normal price I was quoted of £249. You still pay the extra £10 a month though.