Emyr Byron Hughes spoke on the analogue switch-off trials at Llanstephan and Ferryside, the first in the UK, in which he has been heavily involved as an adviser to the UK government. (Emyr is a former Secretary to the S4C Authority and ran the SDN Multiplex as well).
There is a good summary of the trials at digital-lifestyles, and the full report is available.
The good news in essence - the trial went well.