This morning on "Good Morning America" Diane Sawyer was seated on a sofa and Adam Sandler was behind her blowing her hair with a hair dryer. At one point he pointed the dryer into her ear causing her to laugh with a ticklish reaction.
That’s good to hear, but I’m not sure we can rule that as definite proof. Particularly when I distinctly remember Charlie Gibson stating “she’s not ticklish, I know, I've tried” several years ago on the morning show.