In the Jack in the Box commercial with Big Jack and the Little Ball talking to a reporter, her hairdo changes 3 times. Have to give credit to my son for this one.
Actually I don't think this was a slip up. I'm pretty sure it was intentional as part of the joke of the commercial. Most TV news interviewers are pretty picky about their hair. Also the fact that they even switch back to her in the add at all is a clue in to the joke.