I'm in the process of getting together a media centre pc, and i want a dual digital tuner card for recieving freeview. Can all digital freeview tuners recieve HD broadcasts over freeview, such as the BBC HD channel which is currently being tested using freeview? Will all freeview tuners also recieve the 5.1 sound thats part of an HD broadcast? I believe that when analogue is switched off those channels will be used in conjunction with the current digital freeview channels to provide enough bandwidth for HD broadcasting, this suggests that i might need a new tv card for recieving HD over freeview that 'knows' which channels are which. Or will this be done via a firmware update at the time via the dedicated engineering channel that does this? I'm completely new to this stuff and finding it a bit of a minefield. Thanks for your help.