MOMMY911- Scenario every after school this past few months

My 3 and 9 months old son´s whining and crying is getting worse . He always whine when i refused to let him watch Ben10 and Tom&Jerry  (because of nap time). He then would start crying and would continue to his whining tactic.. .Maybe he thinks that crying and whining could be his ticket in getting what he wants, hoping that i would let him watch...It´s very irritating and annoying sometimes.. (Pero that´s the beauty of being a mother..Ang hirap nga lang maging 2 in 1 my gash!)I know i need to discipline him at his age. Good thing i dont just give in just to make him stop and  always end up sleeping.