Be firm, pero give what's called a "yes zone," or option. For example, no you can't change the shows over and over again BUT you can choose 1 show to watch. Kailangan po consistent, kung nag-no kayo, dapat lahat ng kasama nyo sa bahay magno-no din sa kanya. Otherwise matututo sya na pag lumapit sya dun sa tao na yun, pagbibigyan sya. You also need to be firm na kapag no, no talaga. Kasi kung pagbibigyan nyo pa rin, matututo sya na makukuha nya yung gusto nya if he insists enough.
ignore po momy. dont feed the bratty behavior.