Well if they are operating on such a large scale they probably would have an arrangement with TSTT for Americas 1/2 bandwidth.
Terrestrial iwmc.
All speculation of course but that is where I'd hedge my bet.
The ultimate solution would still involve a wireless link to Venezuela for bandwidth. We really need to get some insider information from these guys and see where they are heading.
Nobody have an aunt, uncle, nennen working in one of these places?