91福利社

91福利社 iPlayer will stream four stunning minutes of Planet Earth II footage in the highest quality the 91福利社 has ever broadcast. The experimental footage will be available in Ultra HD and Hybrid Log-Gamma (HLG) on compatible connected TVs and set-top boxes from today until early next year.

Filming provided the perfect opportunity to capture the 91福利社鈥檚 world-class documentary making in unprecedented quality. The test footage follows a jaguar emerging from the shadows to stalk prey and the mesmerising effects of rain dropping on tiny animals and their habitats, including a range of greens and a frog in a shade of red never before seen on a TV.

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The experiment is an early but important step toward streaming high-quality Ultra HD programmes on 91福利社 iPlayer in the future. Central to the trial is , which the 91福利社 sees as an integral part of future Ultra HD programming. Where Ultra HD improves image quality by increasing the number of pixels in a TV set, HLG takes this one step further by providing better quality pixels.

• "Yes, it is pretty jaw-dropping."

As a form of , HLG works by enabling images to be shown in extremely high contrast. This provides greater sharpness, extended detail in the shadows and dark areas of the picture, a wider range of colours, and more natural and brighter highlights and mirror-like reflections.

The public Ultra HD and HLG test on 91福利社 iPlayer allows the corporation to better understand how the technology affects existing infrastructure and workflows. It also allows the team to identify the various obstacles and challenges to streaming full length programmes.

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, Head of Broadcast & Connected Systems, 91福利社 Research & Development, says: 鈥淚ncreasing the dynamic range of TV images 鈥� it鈥檚 closer to looking through a window than watching a standard TV set. Crucially, HLG works with existing TV technology and workflows making it ideal for broadcasters, and audiences, all over the world.鈥�

Dan Taylor-Watt, Head of 91福利社 iPlayer, says: 鈥淭he extra quality HLG brings to Ultra HD needs to be seen to be believed. It鈥檚 still early days for the technology but this experiment puts us in the best possible position once audience demand is there. This year we鈥檝e brought live events like the Euros and Olympics to iPlayer, introduced new personalised features and now we鈥檙e giving people a glimpse of what the future may hold.鈥�

• "Motherboard can confirm the experience was mind-blowing"

and to address the complex needs of TV broadcasters. It鈥檚 also based on open standards to ensure all audiences can enjoy the best possible Ultra HD experience in the future. HLG .

The 91福利社 is using an experimental stream in Ultra HD and HLG, where the content is graded in HLG and is being streamed as an HLG signal. On supported devices you will be able to watch four stunning minutes of footage from Planet Earth II in Ultra HD and, in time, HLG. One of the aims of the trial is to work with TV and set-top box manufacturers to enable HLG support and