This is a normal condition when life is monotonous, not rejuvenated. Have you tried to change things in some way, like going out for a walk or a picnic from time to time, eating in a restaurant? Did you sit down with her and ask her what she's missing, what she needs? Are you trying to let her feel that you love her?
When a man is busy with life needs, and does not spend enough time with his wife, then it is normal that she look for an alternate, and thank God that your wife's alternative is to watch TV and movies.
Get close to her, get her off TV, through discussing different things with her, taking her opinion in different issues. Also, take care of your self, using fragrances, and treat her as a bride.