I've never known of any public ticket that was discounted for the evening at Universal. Like Disney, Universal does offer convention attendees special half-day tickets at a discount. However, you must present a valid convention badge or credentials to pick up the ticket at will-call.

Your best deal will be a 2 or 3-day Florida resident ticket. For a park-to-park ticket, that costs $189.99 or $199.99 plus tax. If you can limit yourself to one park per day (and don't care about riding the Harry Potter train that links the parks), the cost is $149.99 or $159.99 plus tax. Two-day tickets must be used within 60 days; three-day tickets within 90 days. Both option have blockout dates: July 1-August 15 and December 17-31, 2016.

Link to the Universal Florida Resident Tickets webpage: https://www.universalorlando.com/The...t-Tickets.aspx