If you have a Household Membership you may purchase a ticket for yourself and up to 3 members of your household at the discounted membership price. 

To do this start by selecting the Buy Tickets button for the event you want which brings  up the Event Registration Page.  After choosing the Household Member option on that page, select the Next button to bring up the page verifying your membership.  At the bottom of that page is the Guest Registration section.  Select the Add Guest button and fill out the required fields on the form that is presented and select the Done button for each household member you wish to purchase tickets for.