I was listening to Rachel Ray's show a couple of days ago, and she was having some mesurements taken so a wax figure of her could be made. I wasn't watching, but I did hear her giggle, and then say "That tickles!", so there you go, a self admission.
Soo Wing out!
There was an episode of her show in May where she got some facial treatment done. She was giggling and admitted she was ticklish. The show was repeated over the summer. It was the one when Dr. Phil's wife was on the show.