The Tip of the Zoidberg

"The Tip of the Zoidberg" is the one-hundred-and-sixth episode of Futurama, the eighteenth of the sixth production season and the tenth of the eighth broadcast season. It aired 18 August, 2011 on Comedy Central. The crew uncovers a dark secret concerning a covert mission undertaken by the Professor and Dr. Zoidberg many years earlier.

Act I: "We still have three or four coworkers with plenty of spare parts."
Frustrated with Zoidberg's incompetence as a doctor, the Planet Express crew demand Professor Farnsworth to fire him. The professor refuses, and the crew question why Zoidberg was ever employed in the first place. A series of flashbacks reveal that Zoidberg first met and befriended Farnsworth in 2927, during a mission to kill a Tritonian yeti for Mom. During the mission, Farnsworth became susceptible to hypermalaria, a fatal, incurable disease which can either strike instantly or remain dormant for years. As a favour to Farnsworth for killing the yeti and saving his life, Zoidberg agrees to an arrangement: when Farnsworth begins to experience symptoms of the disease, Zoidberg will perform a mercy killing before the disease can fully manifest. As a result, Zoidberg was employed by the professor for the purpose of carrying out the task.

Act II: "Your mistake is being Humans!"
In the present, the professor begins to experience the symptoms of hypermalaria, and insists that Zoidberg must kill him by surprise. The crew catch Zoidberg attempting to murder the Professor, and restrain him with the professor's lab coat and imprison him. Zoidberg notices a single white hair on the professor's coat and deduces that he does not have hypermalaria. Rather, he has contracted yetiism after being scratched by the Tritonian yeti. The illness mimics the symptoms of hypermalaria, but results in its victims transforming into a yeti.

Act III: "Also, the salad's ready."
Zoidberg escapes and goes to Mom, exchanging a coupon for a free tanning session for the yeti's head so that he may use its pineal gland as an antidote. Meanwhile, the professor reveals the truth to the crew, who decide to kill him themselves, using an elaborate mechanical killing machine. Zoidberg returns to announce his discovery to the crew, just as the professor begins transforming into a yeti. Zoidberg forces him to swallow the yeti gland, successfully curing him. As the crew goes to a tanning salon to celebrate, Zoidberg laments giving away his coupon. A grateful Farnsworth offers to treat Zoidberg to a free session, and they both depart as friends.

Production
While originally known as "Nine-tenths of a Zoidberg is Underwater", the episode title changed in the process.

During June 2011, Countdown to Futurama released two items of promotional material for the episode: concept art of Triton Base Camp on 3 June and part of the storyboard showing a young Professor Farnsworth and Zoidberg on a Yeti-hunting trip on 4 June.

On 12 August, Comedy Central released a video clip featuring Zoidberg performing surgery on Fry, Leela, and Hermes.

Trivia

 * Mom's real name is revealed to be Carol.
 * This episode focuses on the relationship between Zoidberg and the Professor, who are shown to be good friends. This contradicts previous episodes, most notably "Teenage Mutant Leela's Hurdles", where the Professor's last words are, "I curse Zoidberg!" Of course, he may have been delirious (considering both the circumstances and the Professor's mentality).
 * This episode also jokes around with Zoidberg's medical competence; he is depicted as being (as usual) horrible with humans, but shows himself to be excellent with other alien races, most notably yetis. For example, Zoidberg is able to extract the Tritonian yeti's gland that will save the Professor's life in record time. Mom also says that Zoidberg is "the best there is you need an alien hacked to pieces!... In the budget category."

Allusions

 * Zoidberg causes Fry to lose blood and develop a host of syndromes named after pop culture figures.
 * Fry first develops a condition called "Simpsons jaundice", referring to the yellow skin of characters from The Simpsons. He then says the phrase "", a catchphrase of.
 * Fry then gets "Garfield syndrome", a reference to the cat.  He looks like Garfield and even says his phrase "I hate Mondays".
 * Fry then develops "Muppet gangrene". This causes him to act like and say that "It's not easy being gangrenous", referring to Kermit's famous refrain from "".
 * Finally, Fry gets an unknown condition that makes him look like a.
 * Near the beginning of the episode, The Professor and Zoidberg are depicted as feeding mice to owls, similar to how in modern-day life, people will throw bread crumbs to pigeons.
 * During Zoidberg's attempts at murdering the Professor, the song "" plays over the scene.
 * The Tritonian Yeti, including its poisonous nature, is designed like the of the Star Trek episode "."
 * Zoidberg exclaims, "Great ghost!" a play on the catchphrase of  character, "Great Caesar's ghost!", which was previously parodied on "Bender Should Not Be Allowed on Television" by Calculon as "Great Shatner's ghost!"
 * The Murderlator is an example of a.
 * Mom's three sons are told to "Stooge out," a reference to the.
 * "Stooge out" could also refer to her sons being "stooges", e.g. devoted followers who are used by Mom for her own purposes.
 * When Fry uses the phrase "believable hulk", it's a reference to the double-meaning of the word "incredible".

Goofs

 * Methane doesn't smell.
 * It is possible that Zoidberg's species is capable of smelling methane.
 * When everyone grabs a vial of poison, a sixth gloved hand grabs a vial as well. In the next shot it is shown that this is Scruffy's hand, yet he isn't involved in the poisoning process. Then in the next shot that we see Scruffy, he doesn't have gloves on at all.
 * The vegetables in Bender's salad was cut with the blade from the death wheel after the poison has been drip on it, yet the Professor is seen eating it at the end.

Continuity

 * The flashbacks reveal once again that people in the future do not age the same as people of the 21st century. In 2927, Professor Farnsworth would have been 85-86, yet appears youthful and is healthy enough for the rigors of military duty.
 * Fry once again mistakes an inanimate object for a living alien, having previously made out with what he thought was "the radiator woman from the Radiator Planet", in "The Lesser of Two Evils".
 * Bender once again shows his love for cooking by making a salad before adding his drop of poison on the death wheel.
 * The tool Zoidberg uses to extract the Tritonian yeti's gland is the same one seen in "The Series Has Landed" when Zoidberg examines Fry.

Characters

 * Debut: Actual Doctor
 * Amy
 * Bender
 * Professor Farnsworth
 * Fry
 * Hattie McDoogal
 * Hermes
 * Igner
 * Larry
 * Leela
 * Mom
 * Scruffy
 * Walt
 * Zoidberg