Yes, it’s already been implemented for that frequency (the top of the light blue line that was relatively flat is now variable and lower, indicating space being created).
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Interestingly, our friends in Germany compress 8 HD channels in some cases:
http://www.digitalbitrate.com/dtv.ph...ve=207&lang=en
They also put paid to the myth you can’t mix HD and SD channels, with 3xHD/5xSD mixed in some cases.