Currently it’s all filmed in HD, but there are plans to introduce 4K in the future - once engineers create cameras small enough that can be carried safely on a motorbike. The Tour trialled 3D footage a few years ago, but demand was virtually non-existent. But this year they have experimented with fitting small cameras to riders, even though the footage can only be accessed after the race. Such a difficult event with such huge numbers of viewers is a dangerous place to experiment, so for now most cameras are tried-and-tested models, but Martin says that the Tour can be a “laboratory to find new ways of transmission”.