Those videos may be updates occasionally with this done remotely. They may be served via a more sophisticated system where content is assigned as a channel with schedules all managed centrally. We have a system with 50+ player computers distributed across NA sites serving many more displays that shows locallized and national content. We refer to it as eTV, and the content is managed by communications folks both locally and corp folks and supported by IT. So, while what the computers do all day is single task, these must be on a network. Now, risk could be reduced through network configs on the hardware side that restricts what connections can be made among them.