Nah, you would be surprised how easily controlled people truly are. If OP actually laid down the law that there was gonna be no more TV, his wife would probably freak the hell out, at which time he should fuck that pussy hard and show her who's boss. And then after a while she would begin to admire his authority and braveness in exerting it.

He either tries this (what can it hurt?) or does nothing and his marriage definitely fails... and it sounds like he still loves her, so. Better than nothing.