Which episode was the very first episode?

I've been seeing más then one episode be labeled as the pilot episode. The episodes being "Test of Friendship,"Party Animal, and "Mother Dearest." I think "Escape Claus" might've been called as the first episode but maybe I'm just confusing that with the fact that I think it was the first That's So Raven episode I've watched. Personally I think "Test of Friendship" is the first episode cause it started with the audience cheering when Raven entered in the opening scene.