How do I deal with my unreasonable parents?

My parents r dictators. Their reason for almost evrything is "Because I said so." Now i've proven to them many a times why i should be able to do something or not have anything taken away such as this 1 time where my parents wouldnt allow to me play my ps3 on our flat screen tv and their reason was b.c they thought it would ruin the TV but i backd miself up by proven that the ps3 was meant to be playd on flat screen tv's like the 1 in our livin room nd yet still wasnt allowd to play just b.c they didnt want me to. This has happnd so many times nd i cant take it anymore. According to mi uncles they had the same problems wit their parents but in the end won b.c they startd to act out nd leave the house whenevr b.c thats the 1 thing they cant take away nd stuff like that nd i feel like im to that point where literally im gonna snap start doin watevr not carn bout the consequences nd just leaven the house whenevr but i dnt wantthat. So please how can i reason wit mi parents or do something to show them that they hav to be able to giv me a reason y they do sometin othr then because they said so.