IMHO they can't. They are on a shoestring donation budget and their hardware and software is iffy some days however it is getting better.
Lets say if 400,000 started to watch instead of the 30,000 or so they have now I am not sure their tech-backbone could handle it and would they crash.
Well, maybe if more watched, more would give donations and they could purchase some new equipment to handle the surge. Just wonderin’....