I’ve got my Roller Derby software capable of streaming camera feeds between each other, which will go a long way to provide more than one camera angle for live events. It’s even greater, because there won’t be a need for lots of high-end PCs, video capture devices, HDMI/SDI wires, etc., all over the venue. Just two clients connected over the network.
It works between two of my laptops, but doesn’t seem to like working with an older desktop and one of my laptops. That could be a video card or network card issue.