Apropos of the posts in the Digital TV tech thread about Japan:
NHK are slowly sorting out what they’re doing with their BS (broadcast satellite) channels - they decided a year or two back they had to cut one of the standard HD ones. (This is on top of similar cuts that are happening to their radio division.)
The merged HD channel is just going to be “NHK BS” (fair enough… even “BS1” is a legacy brand from the days when there was a “BS2” when both were SD) while the “Premium” brand is moving to their current 4K channel with promises of more 4K content.
With the new common NHK channel look, the latter gets shortened to “NHK BSP4K” which is an absolute mouthful. 
Examples can be found on their BS update page, which obviously is in Japanese - the slogan they are going for with the change is “More and More BS” (… 
), with the “normal HD” channel being taglined with “More Surprises” and Premium 4K with “More Spectacular” in one of those promos.
That all starts from December 1st, a slight delay when it was originally expected to happen in November.
There were things in the news earlier this year that they were looking to stream some of their satellite programs online in mid-2024, but the Asahi Shimbun (…conflict of interest note, they do run the Tokyo TV station of the same Asahi name) reported that earmarking funds for it might have actually been against guidelines, as their current operating guidelines only allows them to transmit shows from the terrestrial service online and they need ministerial approval to change that.
This may be an unusual distinction, but part of it may be because the NHK receiving/licence fee is larger if you have a satellite service (currently about AU$230 a year if paid 12 months in advance, vs $130 for terrestrial-only).