I'm sitting at work watching ROTF, and the scene where he went nuts in his astronomy class and started writing Cybertronian on the chalkboard and talking about energon, I vaguely overheard something about Sentinel Prime. If only just the name. Sorry if this was once mentioned before. But it finally caught my ear. I have it on DVD, but I'm watching it right now on FX, so if anyone wants to go back and give it a listen for confirmation?