Futurama Comics #81

Professor Farnsworth invents a reality-reversing machine that makes everything opposite of what it was (or is?) and somehow manages to send Fry a thousand years into the past rather than the future. And if that sounds confusing, it's because it makes perfect sense.

Characters: Bender, Calculon, Doctor Zoidberg, Hattie, Igner, King Arthur, Larry (Futurama), Leela, Merlin, Mom (Futurama), Philip J. Fry, Professor Farnsworth, R2-D2, Roberto, Sal, Scruffy, Walt