A detachable seat mounted audio-visual entertainment system. The system has locally storable, selectable, and updatable content. The passenger in-flight entertainment device terminal has passenger selectable controls, a video display, an audio output, storage media such as a magnetic or “hard disk”, and a payment interface device such as a card swipe, all located in a seat which has been wired with power, local network, and audio wiring. A local, transport vehicle mounted local host computer provides supports the local network, and may be used to collect revenue slips resulting from passenger input to the payment interface device. Revenue slips may be posted to a remote server during a trip segment via satellite or direct radio frequency communication to receiving facilities providing connection to the internet, or alternately collected and posted batch-wise.