There is a mass of technical and background information about the BBC HD service becoming an approved channel from mid November on Satellite. But the question for Freeview viewers is what does it mean for them! These are the key links to the BBC Trust site and the Ofcom site: BBC HD Public Value Assessment: http://www.bbc.co.uk/bbctrust/assets/files/pdf/consult/hdtv/pva.pdf Full file list here: http://www.bbc.co.uk/bbctrust/framework/public_value_test/current_proposals.html Ofcom - Competetion Assessment: http://www.ofcom.org.uk/research/tv/bbcmias/bbc_hdtv/ NB Edit 07/20/09] - these links are now working - as are the corrected ones in the post below!! You should also see the presentation from the head of Ofcom on 19th October 2007: His slides are here: http://www.ofcom.org.uk/media/speeches/2007/09/mediaslides.pdf His talk - in Windows Medai Player is here: http://www.ofcom.org.uk/media/speeches/2007/09/briefing If you read / listen to these - you'll see that there are some key issues - all mainly to do with DTT capacity. Ofcom are doing a further consultation on a path to switch to MPEG4 and a new multiplexing method DVB-T2 - which will not be ready until 2009 or 10. http://www.ofcom.org.uk/media/news/2007/09/nr_20070918 The interesting thing is the trouble the BBC Trust has gone to to look at the issue of ensuring "platform neutrality" - i.e the same hours on Satellite (and its new Spring 2008 Freesat service) and terrestrial Freesat. The key page to look at for the implications is page 111 of the BBC Trust PVT: The key conclusion is (page 112) - that "there is a high risk of public confusion in launching BBCHD as an overnight service on DTT" - using MPEG 2 and DVB-T multiplexing - if new boxes would be needed for an MPEG4 DVB-T2 mutliplex. In the end they say - there is not time in this PVT to sort this problem out - so they propose deferring on DTT - reviewing early in 2008 - with Ofcom conducting an early review of remixing the multiplexes and switching to DVB-T2. There is still a risk to the final decision to be taken by 21st November holding off launch until next year - until the DTT future technical issues are sorted. Only today Ofcom reiterated its view (whcih the BBC grudgingly accepted) that the post switchover position could fit up to 4 HD channels in the spectrum remaining after sell off - providing there was a rolling switch during Analogue Switch off to the new DVBT2 standard and MPEG4 for HD. From the Ofcom talk it would NOT [edited would] mean all current boxes and integrated DTT Tuners based on MPEG2 and DVBT would become redundant. It would provide the opportunity to add a new / replacement MPEG4 / DVBT2 box / television - with (as the BBC Trust note) the possibility - say by 2020 that the majority will have moved to the new standard and the DVBT / MPEG 2 multiplexes could do a switch to the more efficient standard. The plan I guess will be to make all new boxes & integrated DTT telly's compatible with both old and new standards. Its a fascinating debate in the Trust report & Ofcom's work. I've cross posted to a new thread on Sky HD .