ABC posted some of the unaired episodes on Hulu, and in the one titled "The D," (labeled season 2, episode 15), Dreama Walker's character is tickled quickly on the sides. It happens about 11 minutes into the episode when she and her date are sitting at the bar. The episodes will only be available on Hulu for until either June 1 or 2.
http://www.hulu.com/watch/491161
http://www.hulu.com/watch/491161