Continuity mistake: Bender's ID-tag pinned on his chest changes position several times during the episode. In some shots it's even gone. (00:09:50 - 00:13:00)
Continuity mistake: As Gunter is crying in the dorm, the number of bananas change between shots as well as the position of them on the floor. The changes are most notable when Fry approaches Gunter in the room.
Continuity mistake: At the beginning of the episode there is tape on the armrest of the couch, but later in the episode there is no tape anywhere on the couch.
Continuity mistake: The windows at the beginning of the episode are inconsistent. Sometimes they're transparent, sometimes opaque. As in the taxi, the newspaper stands and the shop windows. (00:00:30)
The Honking - S3-E1
Continuity mistake: When they are all sitting at the table and then laughter is suddenly heard Bender says, "What's that?" and Zoidberg is sitting with a glass in front of him. When it cuts to Zoidberg the glass is gone. (00:04:15)
The Honking - S3-E1
Continuity mistake: When we first see Bender as a Were-car we see him jump and land on a green building and on the right of the screen you see an air-conditioner. When it cuts the air-conditioner has changed position. (00:07:55)
A Big Piece of Garbage - S1-E8
Continuity mistake: In the scene where Leela is telling Fry how even his food is recycled (just after they have seen the video of the origin of the garbage-ball) you can see both Fry's drink can and sandwich on the table. After the closeup of Fry his sandwich has disappeared but in the next full-table shot it's back (albeit moved to Fry's right along with his drink can). (00:10:00)
Continuity mistake: After Leela wipes the egg off her face, her cloth and cup are in front of her on the table. After Fry gives his little speech, they have disappeared.
Continuity mistake: Inside the suicide booth when Bender has the coin tied to his finger, the size of the knot around his finger differs between shots. (00:08:25)
Continuity mistake: People (even the dogs) flying through the asteroid belt wear space helmets, but on the asteroids themselves, they don't.
Episode Two: The Series Has Landed - S1-E2
Continuity mistake: When Bender is saying 'you're the kind of guy who visits Jerusalem' near the dome porthole, his cigar is lit and smoking. When we next see him, it's out. (00:09:40)
Continuity mistake: In the bar when Fry spots Leela outside he says "Oh, no. It's the cyclops", there is a can in front of him. When it cuts it's gone. (00:11:00)
The Honking - S3-E1
Continuity mistake: When it cuts to the first shot inside the castle when everyone is sitting at the table you see Bender sitting there with a glass on his right side. When it cuts to a close-up of him the glass is gone. (00:03:50)
Continuity mistake: At the Cryogenic facility, right where Fry shouts "Pizza delivery for..." the desk is positioned almost parallel to the window, but when Fry sits down at the desk, its positioned perpendicular to the window. And Fry can't have moved the desk because in both shots the freezing chamber is placed behind it so he would have had to move that as well. (00:01:20)
The Honking - S3-E1
Continuity mistake: When we see Bender welded to the wall the paintings on his sides are both hanging about a feet away from his arms. When he gets off the wall it's obvious the paintings have moved much closer to him. (00:11:55)
Continuity mistake: Whilst Fry, Leela and the professor are on the log near the waterfall they are very close to the right side of the river. A few shots after Gunter puts the hat back on his head you can see they and the log are now all the way over to the left side of the river.
Xmas Story - S2-E8
Continuity mistake: When Bender goes off the cliff, we see in the overhead shot that there are no kids on the icy lake, nor are there any tress near the lake. When it cuts there are kids on the ice and trees surrounding it. (00:02:45)
Continuity mistake: When Fry and Leela discuss his career, as Fry says "But I don't like being a delivery boy", we see Leela has her hands on the table. When it cuts her hands are under the table. (00:05:45)
Bender Gets Made (a.k.a. Bendfellas) - S2-E17
Continuity mistake: When the cops spot Bender at the Oilade stand, the letters on the stand become much bigger than in previous shots, and the price disappears.
Continuity mistake: When Dr. Zoidberg walks out of the bathroom, he zips up his shirt, and the zipper is just visible above his buttoned up jacket.After that, it's not seen in this episode or ever again. (00:01:45)
Answer: You are thinking about episode 20 of series 2 - "Anthology of Interest I". She technically never kills anyone, but in the episode she ask a "What if machine" (one of the Professor's inventions) what would happen if she was more impulsive. The machine then shows the more impulsive Leela killing off the Professor to get the money from his will and thereafter killing Hermes, Bender, Scruffy, Cubert, Nibler, Amy and Zoidberg to cover it up. Finally she does something really impulsive with Fry.
Andreas[DK]