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Originally Posted by cheekyangus
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As I understand it, the C&M infrastructure has been ready for some months. In fact, the old C&M setup has been repurposed to bring the BBC HD regions to satellite.
Many of the regions now have an alternative SID number for the new regionalised BBC ONE HD, which is a good indication of how far work has progressed. Some regions still having the SID number for the main region in the existing, ITV based, macro region, indicating that more work is needed.
Although the old TSIDs are still being used, some with the same ID are carrying different data, so the multiplexes have been split. Maybe Wednesday's changes will also involve renumbering the TSIDs. When the new TSIDs are known, it will be a good indication of how well the new infrastructure will allow for the
correct ITV 1 HD regions to be added at a later stage.
The London region will now out of sync with the BBC house style for SID numbering. The SID currently used for the England-wide BBC ONE HD service has been 17540 which, following BBC house style, should be the SID number for a London regional service. It appears that the new regional service for London has now been issued with SID 17536 - under the BBC house style, that would be the SID number for a UK wide service. SID 17599 would have been the correct number for an England-wide service. It will be interesting to see if this anomaly is corrected but it is, by no means, critical.
Wednesday's changes should be quite revealing.