[i.h]

Presumably the real barrier is not so much in the logistics of reconfiguring the transmitters to put out a different signal, but in figuring out how many people still use TVs or receivers not capable of T2 and what needs to be done about that.

Even Sky is taking forever to jettison DVB-S & SD and that's with knowledge of exactly how many subscribers (nb not users) still use SD boxes.

Then it's a matter of the business case, what's to be gained by doing this? Does Freeview need more capacity? Do channels want to go HD? Is efficiency important, and could that be delivered in other ways (eg going to SFNs for the national multiplexes)