I just got off the Magic this morning and we had the Animator's Palate show on the second evening that we dined there.
Our dining rotation was listed on our KTTW card as well as on a paper card in our cabin.
We had the LAPLAPL dining rotation and that meant that Sunday, the second day of the cruise was Formal Night. We did not have the show that night, but we did have it on the second time we dined there, which was Wednesday evening.
I was under the impression that the show was always on the first night you were in Animator's, but apparently, it's the first night that isn't a formal night.