I'm serious about this. One of the first things I did when I got home from work Tuesday night was delete a handful of shows from the DVR that I hadn't gotten around to watching yet and cancel all of the upcoming recordings were scheduled. It didn't even hurt when I deleted the unwatched Heroes or canceled future recordings of The Closer and Saving Grace.
Now, when I watch TV, it will be to watch a DVD that I have. If someone else is watching TV, I won't go out of my way to avoid it. But I'm not going to seek it out anymore.