Tables in Wonderland is the new name for the Disney Dining Experience. For a fee Annual Passholders and Florida Residents can purchase a discount card for use at many Disney restaurants (20% discount but mandatory 18% gratuity).
You can look at the restaurants listed if you click on Florida Residents at the disneyworld.com website.
Tables in Wonderland is a discount card that give you 20% off most table service and some counter service restaurants in Disney World including alcoholic drinks.
It's only available to Florida Residents and Annual Passholders for a yearly fee. I believe Fl. residents pay $80/yr and AP holders are $60/yr.
Blackout dates include major holidays: Mother's Day, Easter, 4th of July, Thanksgiving Day, Christmas Eve, Christmas Day, New Year's Eve, New Year's Day.