Revealing mistake: While Lucy is out on the ledge, if you look at the pipe as it runs from above the ledge to below it, the two pieces of pipe don't line up. They are off about the full diameter of the pipe. Also when the pipe pulls out, it's obvious the pipe is on a hinge at the bottom and not really attached to the lower pipe. Later, there is also no stream of water falling from above where the pipe was supposed to be connected as a drain even though it is pouring out.
Continuity mistake: When Lucy buys back her coffee table, Ethel and Fred move it to the kitchen in the Mertz's apartment. The door to the Mertz's kitchen (with its doorknob on the right) in this episode opens the opposite way, inward towards the inside of the kitchen, and not outward in the direction of the living room, as seen in all previous and following episodes, including the very next episode. (00:17:55)
Continuity mistake: In the episodes where Lucy and Ricky are Getting Ready to move to the country, there are shots in the Ricardos' bedroom that shows a wall on the right hand side of the room. In previous episodes, there was a window where the wall appears during the later 'moving to Connecticut' episodes.
Lucy Misses the Mertzes - S6-E16
Other mistake: When Ricky and Lucy go down to the main floor of their new home to 'inspect' for burglars after hearing a noise, the outside wind is loud and howling, yet the trees outside the bay window do not move, indicating this was shot in a studio.
Visible crew/equipment: When little Ricky enters the living room, you can see a man's hand quickly open the door for him. (00:19:20)
Visible crew/equipment: When the chicks are running loose in the living room, and Lucy, Little Ricky, Fred and Ethel are trying to corral them, you can see the chicken wire and braces set up to keep the chickens on the set. (00:20:20)
Other mistake: In the first scene when Ricky staggers down the stairs and on his way to work it's supposedly first thing in the morning but the hands on the Grandfather clock are at 12 Noon/Midnight. (00:00:45)
Continuity mistake: When Lucy and Ricky are discussing the dance at the beginning of the episode and she turns away from him after she tells him "that's all there is to it," however in the next shot she is still facing towards him.
The Ricardos Dedicate a Statue - S6-E26
Continuity mistake: When Ricky is angry toward Lucy that Little Ricky's pet dog Fred has not learned to be obedient he threatens to return Fred to the dog pound where he says the Ricardos originally got him. However, in episode "6-12", Little Ricky Gets A Dog" Little Ricky admits to Lucy that he got Fred from one of his playmates whose dog had puppies.
The Ricardos Dedicate a Statue - S6-E26
Continuity mistake: When Fred the dog runs onto the couch with Ricky's speech he goes to the right side of the couch and puts his head under a pillow. The shot changes and he is now on the other side of the couch.
Suggested correction: The kitchen is a double hinged "saloon style" door. The door opens both ways, just like in a restaurant and most kitchens of the era. This is evident in many episodes.
You're confused. Rewatch the episode, please. Your correction is describing the Ricardo apartment; it's Ricky and Lucy who have the kitchen with that swinging door, which you describe as "double hinged saloon style" that opens both ways. This mistake is actually referring to the Mertz's apartment, and their door leading to their own kitchen is a standard door with a doorknob and it always opens only one way - outward into the living room. It's only in this specific episode the Mertz's kitchen door is attached to the door jamb differently, and it opens inward into the kitchen. The mistake is absolutely valid. The correction should be removed.
Super Grover ★