Continuity mistake: During the Mother's Day commercial on TV, as Destructor hands over a card to Mom, the antenna on the TV suddenly changes color without the shot cutting. (00:01:00)
Continuity mistake: When Bender and Fry are in their cabin the cabin window change position between shots. (00:11:10)
Continuity mistake: Before Bender fight Destructor Leela reads from the script while holding it with both hands. When it cuts she holds the script with one hand and Bender's wand suddenly appears in her other hand. (00:15:45)
Three Hundred Big Boys - S5-E11
Continuity mistake: Right before Leela dives into the whale tank, she drops her snorkel and mask, but when the shot pulls back, they've completely disappeared.
Continuity mistake: When Fry and Bender are sleeping, the knob on Bender's chestplate appears out of nowhere. (00:11:20)
Continuity mistake: When Leela says she wants to enroll in to the army Kif is standing right next to Brannigan. When it cuts Kif is gone. (00:02:20)
The Honking - S3-E1
Continuity mistake: When the two guys are smashing the cab there is a bunch of magazines lying on the ground. When it cuts to Bender's point of view of the guys the magazines are gone. (00:08:10)
Other mistake: After Hermes has limboed under the door he is being told off by LaBarbara. Amy is standing next to her but her nose is missing. From front on her nose is usually a half circle.
Continuity mistake: In the scene where Fry and the professor is trying to make Gunter choose between the banana and the hat, the distance between Fry, the professor, and Leela changes noticeably between shots. First Fry and the professor are wide apart with Leela behind Fry. Then after Leela hears the robot-house's boat approaching, they're all suddenly down by the lake standing next to each other.
Kif Gets Knocked Up a Notch - S5-E5
Continuity mistake: When Zap Brannigan is about to shoot at the evil holograms the horse has fangs, but when they fly out the window the horse's fangs disappear.
Anthology of Interest 2 - S4-E3
Continuity mistake: Just before human-Bender is given the nachos in the bar, we see a blue table littered with food debris directly behind him. When he starts stuffing himself with the nachos the table is red and the litter is gone. When the crew prevent him from eating nachos and 'going to the bathroom' at the same time, the bar is a wide open space with no tables at all.
Continuity mistake: When Gunter is trying to figure out where the hat goes, the banana disappears and reappears between shots. When Gunter finally figures out the hat goes on the head the banana is nowhere to be seen, yet when he needs it to do some calculations the banana is on the ground right next to him.
Continuity mistake: In the shot where the note from Leela's file gets ripped off, note the small tear on the note. Then in a later shot when Fry is showing the Professor the note the small tear has disappeared but then later on the small tear is back again.
The Honking - S3-E1
Revealing mistake: In the final battle, Bender has fry trapped into the seat inside of him, and he drives over a ramp and nearly smashes into the original were-car mid-air. But when the were-car lands on the same ramp that Bender took off from, we see that the furnace is literally touching the end of the ramp. How did Bender get up enough speed to launch himself into the air, especially accidentally (he would have had to turn 90 degrees to get onto the ramp) with the furnace that close? Also at the start of this scene, we see the were-car crying in front of the furnace, and the ramp is nowhere to be seen. (00:19:50)
Continuity mistake: Fry's bottle changes from being in his right to his left hand and the colour also changes when he's listening to the comedian. (00:11:25)
Continuity mistake: Right at the beginning when Leela is opening Nibbler's food, there is no pipe connecting to the microwave, yet when Bender is attacked there is a pipe. (00:00:55)
How Hermes Requisitioned His Groove Back - S2-E14
Continuity mistake: When Hermes said that the form that Morgan filled out for a "regulation date that ended in regulation disappointment" was stamped only four times. The form shows three red stamp marks close to each other and a fourth one at the bottom right corner of the page by itself. Hermes then puts the form on 1.0s' desk and the first red stamp in the upper left corner is now by itself and the second and third stamp marks are now next to the fourth stamp mark. When we get a close-up of 1.0 looking at the form the stamp marks are back in their original place. (00:20:10)
Continuity mistake: When Bender is a "female" and is putting stuff in his locker, in one angle you can see a yellow item next to his pink handbag. Then in the wider angle, this item is gray.
I, Roommate - S1-E3
Continuity mistake: When Bender goes back to his closet alone, the chain hanging beside the light bulb disappears after he closes the door. (00:15:50)
Continuity mistake: After Brannigan has explained the plan to attack the Neutral Planet, Fry turns around in his chair and you can see the head rest goes together with the chair. When it cuts the head rest sits on a bar attached to the chair. (00:16:35)
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]