Closed Captioning

Any time we have the tv on, we have closed captioning on. I like having the words on the screen in case I can't hear something real great. But the other day, I was reminded of how bad closed captioning is. Why can't they spell correctly? Why can't it be more on live time (words on the screen for what I'm actually reading)? Maybe it's harder than I think, but somehow I don't think it is. Maybe it's just not a huge priority for tv stations to get it right. It drives me nuts though, and it just almost makes me want to turn off CC. Get it right people!