Signature dining is pretty much the term for upscale fancy restaurants at Disney. They take 2 credits per person when you eat at them. They are not buffets. All sit down restaurants.
These are them:
Cinderella's Royal Table (inside the castle) at MK
Hollywood Brown Derby at DHS
California Grill at Contemporary resort
Jiko at the Animal Kingdom Lodge
Flying Fish cafe at the Boardwalk
Citricos at the Grand Floridian Resort
Narcoossee's at the Grand Floridian
Artist Point at the Wilderness Lodge
Yachstman steakhouse at the Yacht Club resort
I think that is all of them. Some of them are really great places to eat but you must dress up.
Dinner shows are also 2 credits...The hoop dee doo review at Fort wilderness, the Spirit of Aloha show at the Polynesian and Mickey's Backyard BBQ at Fort Wilderness are the dinner shows.