Eventually I was also able to get a LIVE broadcast to Youtube working last night. I just needed to add a Youtube Mobile LIVE encoder to the stack.
You are correct that 720p is not bad, but I noticed that when in low light, the poor quality of the image on the JXD screen increases. What is difficult to see on the JXD, is impossible on the webcast video. This might only be an issue for me since I often work in inky black world of mines and caves, where you’re limited to the light on the ROV. I’m looking for added lighting on the Trident to resolve this issue,
The cockpit info can a bit of a nuance, but in my test I found you eventually ignored it, and not notice it at all.
I’ll see if I can do a real world test in the local bay this weekend, using a mobile hotspot to push it to Youtube.