Don’t watch TV.
TV can be free entertainment, but I think that avoiding it altogether is the smartest choice. Cable is never a necessary expense, though I realize many people enjoy spending their downtime watching TV. But the whole television experience is designed to get you to buy things. Discounting the commercials (which make no bones about getting you to spend your money on things you never knew you wanted) I find the majority of things on TV show a distorted view of reality. Remember the apartments of the “Friends?” How about the homes that supposedly middle class families live in on TV? Huge! And reality shows? Not actually reality.
If you have fallen in love with a show or two, there’s nothing wrong with that. But try and limit your TV viewing and see if your wants decrease. If you can go cold turkey with “your shows” you can always watch narrative shows later on DVD. I prefer this as I can avoid the commercials and watching them at my own pace.