To tell the truth, I don't have a problem with returned items being sent out again IF they are in a saleable condition. If you go to any high street shop and return an item, it'll go out on sale again (as long as you haven't returned it because it's faulty). And any clothes, shoes etc you buy in a high street store could easily have been tried on by several people before you.
What I do have a problem with is QVC sending out obviously used items, even faulty ones. Also their insistence that this doesn't happen. They should be more efficient with their systems and more honest!