Speaking to Advanced Television at the MIPCOM programming market, King said that the BBC would take an "Internet first" approach to 4K content, as the task of broadcasting 4K shows over digital terrestrial TV was proving "difficult".
King also confirmed the BBC is increasingly producing new programmes in HDR, including the upcoming Planet Earth II series, with HDR increasingly seen as a crucial factor in differentiating 4K content from HD and SD.
King also mentioned that he would like to see serious improvements made in "object based audio', such as Dolby Atmos and DTS:X, saying: "As an industry we need not to forget the sound stuff!” Hear, hear.
More after the break
It now looks much more likely we'll be watching 4K iPlayer, but presumably not until some time in 2017.