[ginnyfan]

Not sure anyine has said its technically impossible. Just that (presumably) there is no shift dedicated to it in either the editorial or technical side until the launch in April. 

I assume this is because all resources are being put into piloting the new channel and making physical changes to studios.

However I'm 100% confident that should a situation warrant it, some way will be found to opt the UK feed out of the World feed.

Or they’ll just decide that World can take more U.K. focused news over the next month.

I think we can take it. We'll survive!