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Mixed Reality Immersive headset MR Video player like 360 degrees YouTube video
Jimbohalo10
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For all UK Windows Mixed Reality Headset, tested on HP Windows Mixed Reality Immersive Headset. Power Media Player MR UK Store, there is a free to use date time version which is really good for YouTube Star Wars Last Jedi trailer in Immersive view.
The FOV is 95% unlike the HoloLens so you can see everything, look over your shoulder 
You DO NOT need a high power graphics card, see below, for this to run, this should run on 2015 machine which is my Custom PC.
The trailer for Star Wars Battle Zone is intense, as really good pilots you are just sitting in the co-pilots seat 
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The YouTube trailers to look for are labelled 360 degree.
The Power Media Player MR US Store by Cyber link has free version to upgrade
Graphics Card Minimum
Integrated Intel® HD Graphics 620 (or greater); Windows Display Driver Model (WDDM) 2.2
NVidia GTX 750TB (or greater) DX12-capable discrete
GPU AMD RX 460 (or greater) DX12-capable discrete GPU GPU must be hosted in a PCIe 3.0 x4+ Link slot; Windows Display Driver Model (WDDM) 2.2
Does not need or use Steam VR, just one of the Mixed Reality headset and wearing the MR headset select the free version.
If you save this post to the favourite Toolbar on Edge you can start the Desktop app and the open Edge to select the linked page above to install on you MR PC from the Store then Launch directly