Disclosed herein is a remote controller apparatus including: preset holding means for holding, per preset code, preset information representative of correspondence between buttons of a plurality of trial-targeted remote controllers on the one hand, and an output signal given when each of the buttons is pushed on the other hand; evaluation value creating means for counting, out of the preset information held in the preset holding means, the number of preset codes of which the output signal is the same for each of the pushed buttons, before setting the largest count as an evaluation value of the button in question; and button presenting means for presenting as a trial button the button of which the evaluation value is the smallest.