Noise is reduced at a so-called Q-node and a so-called A-node of shift registers in a gate lines driving block of a scan driven display system so that the display system can be safely operated even at elevated temperatures. The antenna comprises a receiver module or component and wire or cable which extends along the cowl grille generally parallel to the front windshield. A geometric model is employed to convert the location andor angular measurements into a corresponding articulation andor roll angle for the tractor-trailer combination. The decoder outputs data corresponding to the or each sequence resulting from the altered or destroyed analogue input signal indicating that the sequence is incorrect. In some embodiments, the slot is provided substantially helically through an angle of 360 degrees to provide common orientation of parts in each backset dimension. A valuation application allocates a cost to the client device when the media content is distributed to the client device.