Helius started out years ago building satellite interfaces into routers. The idea was to use the satellite for content distribution. They claim that its better, for certain applications, than either a standard satellite video system or terrestrial IP (i.e. Internet). In the case os satellite video, they have the advantage of having full IP, so they get VoIP, interactivity, and so on. In the case of terrestrial IP, they eliminate all the routers that would sit between the source and sink as well as getting multicast capabilities (which the Internet has failed to deploy).
Helius sells appliances. They have routers, video encoders and decoders (all IP based) and training systems. Their technology, however, is all about the software that lives on those boxes. As you can imagine, a lot of this involves digital rights management so that a company distributing training, for example, can determine who has paid for the training and authorize just those people to access the content.
Customers typically do training (corporate or otherwise) or distribute content to many locations (think of product advertisements inside retail establishments). They haven't graduated into the kind of aggressive personalization that was showcased in Minority Report, but its certainly possible, since this is all IP based, to tie it into the store's customer database.