The Hierarchy of Swear Words

I'm watching Center Stage on TV right now...yes, I know it's a ridiculous movie, but I love it....and yes, I realize it's 7:53am.. Well, since it's on cable they've changed some of the swear words for TV. Like "bitch" has suddenly become "buster." Fab. But they also switched "shit" to "hell"...really? When did "shit" jump "hell" in the hierarchy of swear words.

You should all realize what I mean when I'm talking about the swear word hierarchy. There are some words that while you shouldn't say them if you're 5, really aren't that bad (at least in my opinion...maybe if you're a fundamentalist Christian, but I'm not): ass, shit, crap, damn, etc. Then there's the words that you may use around your friends, but not around your parents: bitch, hell, dick, douche bag, etc. (Though this might not really be an appropriate measure since my family still regularly uses the phrase "bucket of hell.") Then there's the REALLY bad words that can only usually (unless you're Danielle) be referred to by their first letter: the f-word, the c-word, etc. So when did shit and hell switch categories? or is my hierarchy all f***ed up? They also censored "damn", but still left "hell."