C.
I also saw the What Not to Wear Episode....I had dark eyebrows and blond hair, so I bleached my eyebrows using Jolen (sp?) facial bleach. It comes in a greenish box, you can buy it at Walgreens, it has been around forever, great stuff. I also left it on for about three minutes to start, but sometimes, since my eyebrows were quite dark, needed a bit more time. As I have gotten older and had a couple of kids, my eyebrows have gotten lighter, so I don't bleach anymore, but this method worked for me!