The event has been in December since 2001. It was previously in October, and one year was in early November.
Here is information based on the last couple of years:
The Teddy Bear and Doll Weekend will take place at World ShowPlace at Epcot the first weekend of December.
The event generally runs from 10 a.m.-7 p.m. each day and will feature teddy bear and doll artist appearances, exclusive event logo merchandise and unique holiday photo opportunities with Disney characters.
Activities taking place the first two days of the event (Friday and Saturday) are open to package guests only. The event will be open to all Epcot guests on the Sunday of the event weekend (again this is subject to change.)
There have been no announcements as to the package costs this year, but the packages generally include activities such as limited-edition-book signings, auctions, socials, a private IllumiNations viewing and priority seating for a performance of The Candlelight Processional.
Special Events number for booking this is (407) 827-7600
Hope this helps.
Sue Ellen