A system and method is provided to automatically generate content for ITV products and services by processing primary media sources. This valve is trunnionated with stem components that are separable from the plug for ease of maintenance and manufacturability and thus reducing the need to remove the entire plug and sealing assemblies in the field. The test pulses pass through an unbalanced Mach Zhender interferometer with the result that for each test pulse, a pair of time-displaced pulse copies is launched onto the link. A hinge pocket is defined in the structure of the pit lid support. In the event of a collision, the rigid barrier engages one of the hook-shaped portions and withdraws the telescopic portion from the front bumper assembly.