I have been looking for this clip forever and I finally found it. Well before ROTF hit theaters, the scene between Sam and Bumblebee in the garage was shown to select audiences at a tradeshow. Thing is, the scene is extended and Bee talks. Through the RADIO, Bee says to Sam "What-is-your-purpose" and then, through a strained Mark Ryan voices says "Sam." The word "Sam?" isn't through the radio; it's his real voice. His mouth actually moves here, too. Pretty cool, yeah?