You could almost think that the BBC Trust knew that Channel 4 was planning to launch its own HD service before the year's end because, partially answering Gordon's question Ofcom has announced its approval for the service to end the current trial and move into full-scale broadcasting - feel free to run around in circles whooping if you must.
Even better, unlike every other HD service (so far), the BBC would be bringing high def to Freeview and Freesat, which is great because well all know the best things in life are free. Ofcom has recommended that the BBC wait to launch its Freeview channel, however, suggesting the technology is not yet mature enough.
Indeed, the current proposition is that overnight BBC Parliment, Four and the BBCi stream would have to be downed in order to allow sufficient bandwidth meaning only night-owls or HD PVR owners would be able to enjoy the service. That is still infinitely better than no HD at all in my opinion at least though and would only be an interim measure until the BBC sees sense, culls BBC Three and Four and replaces them with BBC HD and uses the extra budget freed up to increase the quality, not quantity of its broadcasting.
For satellite and cable viewers, the channel would be a nine hour selection of the best offerings from BBCs One and Two, which would hopefully mean such shows as Heroes and Planet Earth could be gracing our HDTV sets pretty soon. Further information , pertaining to the specifics is due later but for now, all we need is for Channel 5 to join the party, bringing House and CSI with it.