Back in July fuboTV started to offer 4K HDR streaming in Beta on FOX and FS1. Now, fuboTV has added NBCSN to the lineup of channels that support 4K HDR. Now there is one important note. Not all content on Fox, FS1, and NBCSN is shot in 4K. Only select games are aired in 4K HDR on these networks.
Source: fuboTV Expands 4K HDR Support