Is it not a mistake to consider Freesat as an alternative to Sky HD?
I understood Freesat to be an option for those people who were unable to receive Freeview.
The HD content on Freesat is minimal,and what there is is mainly BBC sport.
Given ITV's financial problems,their roll out of HD content is problematic,and Channel 4 is talking year end at the earliest for their HD transmissions.
All in all,rather a damp squib.