A heating cooker which prevents leakage of water even when an inlet of the water feed pipe is placed in any direction, and in which a water feed tank is removably coupled to the water feed pipe in any direction. The sorbent comprises a carbonaceous sorbent material and a cured amine-containing polymer, and sulfur. Samplings of all unitary AD conversion units can be sequentially synchronized with the sampling of the reference AD conversion unit, and the operation clock frequency of the reference AD converter can be made N times slower than the overall sampling rate of the time-interleaved AD converter. By doing this, the sheet resistance can be greatly prevented from a change with time. Specific preview information is added to the SDP messages so that they can be linked to a DVB service.