Other mistake: When the robots are building a Tetris wall, there is a section on the left made up of two red 'L' bricks. However, the upright L block is not the same as the other red blocks, because it is flipped laterally. (00:09:05)
Anthology of Interest 2 - S4-E3
Continuity mistake: When the Professor shows that the woo-woo sound was air escaping from human-Bender's rolls of fat, there are small grey bits of debris on the wooden floor of the stage all around him. When the crowd gathers around Bender – seen from above - they are gone.
Fry and the Slurm Factory - S2-E4
Continuity mistake: When they arrive at the gates there are two slugs with clothing on the one on the left has lighter skin than the one on the right, but when they show the next shot they have changed places.
Fry and the Slurm Factory - S2-E4
Continuity mistake: When Bender almost gets killed by the machine he has a big hole in his body, but when he is running away in the next scene the hole disappears. (00:18:40)
Fry and the Slurm Factory - S2-E4
Continuity mistake: When Bender and Fry are in the 7^11, the poster of Slurms Mackensie has it's teeth showing, but then his mouth is open with no teeth. (00:05:50)
Continuity mistake: When Fry starts watching one of his old videos, all the objects that were on the floor in the previous shot disappear. (00:10:55)
Continuity mistake: When Bender and Flexo are fighting, Leela fires a shot at the roof and some bulbs fall down. The bulb's positions change between the shots. (00:18:25)
Continuity mistake: When talking about El Chupakneebra with the Sewer People, the characters are standing in front of a building with a blue sign reading "Cleaners". But in the shot where Leela explains how Nibbler loves fresh crocodile, the writing on the sign changes to a completely different, much narrower, style.
Revealing mistake: When someone suggests crying as a way to get the emperor out of Fry's body, he says 'that's a great idea', the emperor's face stays still on Fry's stomach, instead of moving in sync with Fry's body. (00:15:50)
Continuity mistake: When Leela is found on the door step she has a bracelet on her wrist but in the next shot it is gone.
The Honking - S3-E1
Continuity mistake: The flame painting on the Project Satan Were-car change between the shots. (00:18:30)
Anthology of Interest 2 - S4-E3
Continuity mistake: There is a weird case of musical tables going on during the Professor's Nobel Prize presentation. When Professor Wernstrom stands and says 'He needs medical attention.' he is sharing a table with an African-American man (who drops his pipe) and a younger man in a green shirt. On the table is an empty retort, an empty glass, one knife and two plates with half eaten meals on them. When he stands and tells the Professor he isn't going to get the Nobel Prize there are three plates with complete meals, a full retort and a full glass and two sets of cutlery. The African-American man has regained his pipe and is at a different table, and a white, bald man has joined them.
Put Your Head on My Shoulder - S2-E10
Continuity mistake: At Fry and Amy's date Fry has a bite from his burger, puts it on the plate and holds on to it. When it cuts his hand's off it. (00:15:55)
Continuity mistake: When Fry and Leela are standing in the corridor with the portraits of the past Emperors, there are numerous errors. Including the picture of Fry vanishing, as well as blank frames appearing and figures facing the wrong direction. (00:11:50)
I, Roommate - S1-E3
Continuity mistake: When Bender walks into his apartment he pulls a cord which turns on the light, notice the level of this, it's about head height. Then when Fry walks in, the bulb and cord vanish totally from the shot from above. (00:05:40)
Where the Buggalo Roam - S4-E6
Continuity mistake: When Kiff is being offered the peace pipe, in one angle there is smoke coming out of it, in another there is no smoke.
Continuity mistake: At the court, Bender is shot in the back by the Professor leaving multiple holes but later when he is talking to the little girl all the holes have gone.
The Honking - S3-E1
Continuity mistake: When the robot at the start is dying, the doctor opens a panel to see his "heart beat." After a couple of other shots we see the panel again and this time it's closed without anyone touching it. It's also important not to confuse the doctor closing the robots eyes with this panel. (00:00:35)
Episode Two: The Series Has Landed - S1-E2
Continuity mistake: In the cargo bay, when Fry and Amy say "clear", the address label on the crate is blank. When Amy moves the hoist from atop her head seconds later, the writing reappears.
The Honking - S3-E1
Audio problem: After they have welded Bender to the wall Leela and Fry leaves. When they go outside the door is closing. It cuts and we hear the door close but we can see the door is already closed. (00:11:45)
Answer: Yes Leela knew from early on that Fry had feelings for her. They were pretending to be a couple in 'A Flight to Remember' from season 1 and Fry tried to get on dates with Leela ever since. She just didn't show signs of the feelings maybe being mutual before some of the later episodes.
Andreas[DK]