I just noticed this.
Remember ep 3 where Bender can't cut off his antenna because it's like symbolically castrating himself? This is further enforced by the fact that Leela can't understand why he can't do so because "She's not a robot or a man."
After cutting off his antenna, Bender says, "I guess I'll have to deal with being half a robot." Then, when the robot cop finds the antenna, he responds with, "You call THIS an antenna?" You don't have to be Freud to figure out what the antenna symbolizes.
Anywho, in 1ACV05, after Bender produces a cardboard bucket full of popcorn, he asks "Who wants butter?" And he lowers the bucket of popcorn to his lower torso area and starts pumping the antenna.
I dunno...am I really sick for thinking this? Or did anybody else notice?
Peace, Vince Yim