Rotary forming drums that have a unique vacuum distribution and control system imparting a vacuum to the insert trays in a region or zone of the drum in a controlled manner. Each element includes a layer of dielectric material, the layer of dielectric material residing at at least one of the filter elements on a layer of a material that is resistant to activated oxygen or activated water. In response to receiving the information from the DVR, the server determines a \u201cto do\u201d list of programs that the DVR should record as those programs are broadcasted in the future. The system further includes a 2-D rendering software driver operably communicating with a 3-D rendering software driver and a rendering device. The inner vessel is located at a position within the intermediate vessel such that the central axis of the inner vessel is spaced apart from the central axis of the outer vessel. In the above-mentioned structure, when the second internal terminal is not bonded to an external terminal, the second internal terminal is pulled up or pulled down in accordance with a logical level of a signal input to the first internal terminal.