Well its like 30 or 40 shows a season. some of them are bound to be good and relevant to your specific genre tastes, so you end up with a ton of stuff to watch.
I always end up just watching, and if I don't like it then I don't finish it. But I usually use it as something to do when I'm sharpening the knives, or desoldering keyboards or what-have you.
That way, I don't "lose" any time on it.