Corrected entry: When Bender in with the other robot he is wearing a bow-tie that is magnetic. During the second episode he tells the rest of the crew that magnets make him sing show-tunes. Wouldn't he want to avoid having a magnet on him?
As the power builds up in Bender, his left eye pops out, making him a cyclops, subsequently being eaten by the Cyclops eater. After the monster dies, Bender comes out, and has two eyes in the long shot, but puts his left eye back in the close up.