A new hardware DVB-T2 chip will be needed - Period .
No firmware update will be possible as DVB-T2 will require much higher procession power in the DVB receiver chip.
I am thinking about buying one of the LED TVs - probably the UE32B7020 - but I have just found out about UK starting to broadcast HD on freeview for some channels starting "late this year", but probably all across the country by early 2012. Apparently, the format that the HD broadcast will be in (DVB-T2) will be different to the existing format, DVB-T.
Is this just going to be a firmware fix to decode the new format, or will it need a set top box to translate the signal in the first place? If the latter, then how long before Samsung will start to ship the TVs with the new version of tuner installed?