If it hasn't been approved or rejected yet, you can't send a correction note on it yet. You can go with contacting an editor in the category but depending on the category you submitted to and the number of editors, there's no guarantee that another editor won't action it before the one you send a note to gets around to seeing it (and I don't really think it's good practice to send a note to each of the category's editors... if there's only two of them, that's one thing, but some categories have six or seven).
Anyway, don't worry about it too much. Watch for the question to be accepted (or rejected) and then check out if the error is still there. If it's something an editor familiar with the subject matter might catch, then it might be fixed already. If not, at that point you can submit a correction note on it detailing the correction that needs to be made.
Editor: Television and Animals