1. A method for testing components of a vehicle entertainment system, comprising: interconnecting, via a network, a server computer comprising media content, and a plurality of user computers comprising software and hardware via which the user can interact with the media content; loading a test agent component onto a first of the user computers; loading a first scenario file comprising a series of user entry events that emulate user entry actions via a user interface device of the first user computer; executing the user entry events of the first scenario file by the test agent to generate system events that would normally be generated by a user operating the first user computer to interact with media server; and responding to the first user computer, by the server computer, to the system events.