A system is described which includes a content retriever to retrieve and format data and a media file playlist generated by the content retriever from the data. The printed circuit board may have a first surface and a second surface opposite the first surface. R1\u2014CO\u2014n-OR3\u2003\u2003, R1 represents a linear or branched, saturated or unsaturated monovalent hydrocarbon group having 15 to 21 carbon atoms and R3 represents a linear, branched, or cyclic monovalent hydrocarbon group having 1 to 8 carbon atoms. The positioner can move the charger within a range of motion. The liquid crystal molecules adjacent to the first substrate is rotated by applying the voltage, but, the liquid crystal molecule adjacent to the second substrate is fixed regardless of the applied voltage. The other advantage is one of servicing by the ability to inspect the bearings and all oil conduit connections without being encumbered by oil partially covering or surrounding the bearing shoe.