Test it with the criterion of practical maxims, the Categorical Imperative. If everyone followed a law permitting them to steal what they wanted, property would cease to exist at all. Therefore, this maxim leads to a contradiction and is not permissible. In other words, I am treating the cable employees, the owners, the studios and actors involved in the programming, only as means and not as ends. Stealing cable is immoral and I should not do it.
Actions are to be judged right or wrong solely in virtue of their consequences.
In assessing consequences, the only thing that matters is the amount of happiness or unhappiness that is caused. Right actions are those that produce the greatest balance of happiness over unhappiness, with each person's happiness counted as equally important. On the one hand, saving money makes me happy, and I'd be saving a significant amount of money. I'd also enjoy watching the shows I'd otherwise be unable to watch, plus I'd put the money I'd save to other uses that would also bring me pleasure. I'd also feel some regret because I'm basically against stealing, even if I'm stealing from a large business rather than an individual.