At US Nationals, we had a live scoring page! It was awesome. I was hoping it would exist for 4CC since USFS was putting it one but, alas, it was not to be.
As for the ISU doing streaming and whether or not people would pay for it, people have different needs. Some people never watch Juniors. Some watch everything ISU including Challengers while some only watch the championships (Worlds, Euros, 4CCs) plus their own Nationals. Some people go back and re-watch programs over and over and some don't
For me, I like watching competitions as they happen or very soon afterward. I don't go back. I don't even watch this year's comps if I miss them the weekend they happen and don't pick them up within a few days after. The thrill of watching a competition unfold isn't there at that point with the results everywhere and having been discussed to death.
So that sort of service isn't as expensive as the one
@tony wants. And IMO the ISU has a vested interest in getting people to watch its competitions so using it as a loss leader makes sense to me.