While Ms. Murphy is correct about most of your options, she is leaving one out. If you wish, you can go to your profile page, click on 'edit profile.' Near the bottom of the 'edit profile' page is the option to 'show idle hubs on my profile.' Check Yes and your idled hubs will appear on your profile page.
Having your idled hubs appear on your profile page will allow people who access your hubs through your URL (discovery2020.hubpages.com) to locate and read your idled hubs if they wish.