It says on the website that on select Tuesdays, they will have "educational symposiums" at SW now through the end of the year.
JennyRMouse, it looks like anyone can attend.
AARP members get a discount.
For the remainder of the year, it looks like there are currently 2 seminars left - one on September 18th, and one on November 6th.
"Seminars are included with park admission or Passport membership and begin at 10 a.m. Seminars meet at the Sea Fire Inn, located in SeaWorld’s Waterfront. Seating is limited and on a first come, first serve basis. Seminars are subject to change or cancellation without notice."