I don't know if anybody has noticed this before, but lately this has been bugging me. In episode 1 I know Yoda is digital here:



and I think here:



But, in this scene

 (in chapter 46 of the widescreen Ep1 dvd)

Yoda actually looks like he is being played by a person. He just seems funny walking down that ramp, as if there is an actor in a yoda suit. Anybody have any thoughts as to what it is? Actor or just the puppet?