In "Lucy Does a TV Commercial" you can clearly see Lucy smoking offstage with the living room set while Ricky is performing!


In "Ricky Loses His Voice", Episode # 44, when Desi is going over a song with his piano player when the show first starts, Ricky tells him to call Lucy and tell her he's on his way home. The piano player says, "Ok, Desi" Oops!

In the episode where Lucy pretends to be the Maha-rincess, at the end of the show, when Desi walks into the room, he has on elevator shoes which make him four inches taller than he is. 


In the Lucy & Desi Comedy Hour episode where Lucy has to sleep on a hammock in Red Skelton's suite room, once when she falls off, she throws the blankets and pillows back up on the hammock, and in the next camera shot, the whole hammock is made up beautifully, with all the sheets, blankets and pillows arranged properly. 


In the episode where Lucy, Fred and Ethel do the quick-changes to fill up the restaurant and then leave when they find out that Ricky Ricardo is no longer playing the at the Tropicana, the make a reservation for 12, and when they are seated, the table is only set up for four people.


When the Ricardos are on their way to California, Episode # 111, "First Stop", when Lucy gets out of the car to read the sign about the pecan prailines, her coat is white. When she gets back in the car, it's black again.

In "Lucy Thinks Ricky Is Trying To Murder Her," when Lucy and Ricky are dancing you can see part of the bedroom at the left side of the screen.


In "lucy's show biz swan song" lucy and ethel want to be in rickys show. And Ethel dresses up like a man and lucy is dressed up kind of like little bo peep and there dancing around and well right before her dress falls down you can see her pull a string to make it fall down .

In "The Courtroom" the Mertzes celebrate their 25th wedding anniversary, but just a year earlier in "The Girls Go to a Nightclub" they were celebrating their 18th.

In "No Children Allowed" Vivian Vance makes a mistake, when telling the other bridge players her good deed, she says "You know that old Mrs. Trimble who lives upstairs?" instead of Mrs. Trimble it should be Mrs. Trumble.

In "Never Do Business With Friends" the Mertz'es washing machine is a wreck, but in "Sales Resitance" Fred buys Ethel a brand new washing machine, and that episode aired only 5 months before "Never Do Business With Friends"

In "Redecorating the Mertzes apartment" Lucille Ball says "Lets paint the furniture and reupholster the old furniture" instead of "Lets paint the apartment and reupholster the old furniture" but Desi saved the dialog.

In "Lucy Learns to Drive" Lucy is teaching Ethel how to drive, but in "The Camping Trip" Ethel already knew how to drive.

In "Lucy Gets Into Pictures" Lucy makes a reference to Lillian Appleby, instead of properly calling her her new name Carolyn Appleby.

In "Paris at Last!" the prop department makes a mistake by mistakenly placing a bottle of California wine on the table.

In "Ragtime Band" Lucy claims to only know one song, "Sweet Sue" but in "The Saxophone" she only knew "The GlowWorm", also in this episode Ethel could barely play the piano, but in earlier episodes she has already shown that she played very well.

In "The Gossip" Ricky says that the Fosters live in apartment 3B, then in "The Anniversary Present" they live in 2A.

In "Pioneer Women" Lucy says her grandmother was Swedish, but in "Lucy Goes to Scotland" she is searching for her ancestors in Scotland.

In "Tennessee Ernie Hangs On" when Ricky is imatating cousin Ernie when he finds the ticket, he bends down to pick up the ticket, while he is bending down you can see a cord running across the screen.

In "Lucy and Bob Hope" Lucy gets her cleats stuck in a 1x1 tile. When Lucy, Ricky, and Bob Hope are finished with their song the tile isn't on her cleats anymore and they didn't she her taking them off.

In "Lucy and Ethel Buy the Same Dress" Ethel's middle name is Louise. In "The Million-Dollar Idea" her middle name is Roberta. In "Ethel's Home Town" her middle name is Mae.

Fred's ex-vaudeville partner was named Ted Kurtz in "The Ballet" in "Mertz and Kurtz" his name was Barney Kurtz.

The Ricardo's phone numbers changed quite a bit too. First it was MUrray Hill5-9975 six months later it was CIrcle7-2099, two years later it was MUrray Hill5-9099.

In "The Ricardos Visit Cuba" when Ricky and Little Ricky are preforming Uncle Alberto smashes his hat, in the next scene his hat is in perfect condition.

In "Lucy's Show Biz Swan Song" when Lucy and Ethel are auditioning if you look closely before Lucy's skirt falls you can see her untying her bow to make her skirt fall.

In "Redecorating the Mertzes Apartment" Lucy makes a mess with the feathers in the MERTZ apartment, but in the last scene when Lucy and Ethel are in LUCY'S apartment you can see a feather slowly floating down.

In "Ricky Minds the Baby" Lucy is in Ethel's apartment and she is pacing back and forth, nervous about leaving little Ricky for the day, and you can see her shoes clearly, then she leaves Ethel's apartment and goes straight to her own, and when she walks through the door you can see that she is wearing different shoes!

In the episode "Lucy Thinks Ricky Is Trying To Murder Her" Ricky really drinks the glass with the sleeping powder in it. when Ricky first hands Lucy the cup with the sleeping powder in it, Lucy puts it on the table on the right. When Ricky dances she swiches the glasses so the one with the sleeping powder in it is on the left.  Then Lucy says "That's enough dancing lets drink."  Then she was about to pick up the glass with the sleeping powder in it on the left when Ricky says "Look at that. That is the biggest spider I have ever seen!" Then he switched the glasses back so that the sleeping powder was in front of him on the right.  He drank the one with the sleeping powder not Lucy.

In "The Freezer," Lucy puts the beef into the furnace that Fred was fixing, then after Lucy freezes herself, he goes down to turn on the furnace, wouldn't Fred have seen the beef in the furnace?

In "Pregnant Women Are Unpredictable"  when Ricky and Fred are in the kitchen cooking Lucy waffles, Ricky cannot pronounce 'cheek' correctly.(chick) But when ricky sings "Cheek to Cheek" at the Tropicana Club later, he has no trouble with the word!!


I got this blooper from NewYorktimes.com

March 23, 2002
In a Small Upstate City, They Love Lucy Anew
By RANDAL C. ARCHIBOLD
JAMESTOWN, N.Y., March 17 - Lucy and Ethel, mouths stuffed with chocolate from that famous factory scene in "I Love Lucy," peer down from the side wall of the Jones Bakery here. Lucy and Ricky, in another mural, stare out from the side of the post office, on Prendergast Street


In episode "Ethel's Hometown" the blooper was that her "daddy" called her Ethel MAE Potter. In the episode called "Lucy and Ethel Buy the Same Dress", Fred calls her Ethel LOUISE Mertz.
thanks so killian for sending this blooper :)


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