We don't think their caginess is because they're not going to have 4K content. In fact we think the opposite: that they are staying silent on the issue until they not only have their technical plans in place, but their marketing strategy as well.
Even 8k is in play for the BBC
It's pretty much the same with other broadcasters, although the BBC is slightly more open on the matter, saying:
The BBC was part of the trials of Super Hi-Vision during the Olympics which we thought were a great success. We are also participating in the EBU projects on 2160p/50 production and the impact of HEVC compression in production and emission.
The Natural History Unit project recently publicised, exactly mirrors the first high definition trials carried out for Planet Earth almost 10 years ago now
Which is itself illuminating, because we learn from this that
- The BBC takes 8K ("Super Hi-VIsion") very seriously
- In the BBC's view, the progress of 4K production is exactly mirroring that of HD a decade ago
- HEVC (H.265) is being tested and evaluated by the BBC and the European Broadcasting Union
Of course, it is very early days for the broadcasters and it would be surprising if they were to launch services when the number of 4K-capable sets with users is statistically zero. But we think that it won't be very far into 4K's life cycle before we start to see at least test channels being set up by the big players, and we still think, despite their silence on the matter, that Sky will be the first in Europe.