We had to cancel our satellite TV because the kids would watch it all the time when left alone, and then WOULD COMPLAIN TO US that TV takes too much of their time. They just could not control it. The household rule is no TV on weekdays, unless one of them is home sick or it is a no school day. They both ADORE The Simpsons and still get to watch it on weekends, if we happen to be home. Other than that, daughter will occasionally watch NOVA on Tuesday evenings (exception to the rule).
We watch a lot of movies together though !