Top Banana - S1-E2
Continuity mistake: When Lindsay has just returned home and is placing the flowers she has bought into a vase, we see her remove the flowers from the shopping bag and place them on the kitchen worktop. A few shots later, the flowers have moved back into the bag and we see Lindsay remove them again.
Continuity mistake: Throughout Gob and Michael's conversation in the kitchen, the sandwich on the counter keeps changing position without being touched.
Continuity mistake: In the scene where Michael has just taken Lucille number two to Tobias' new club, the shots are obviously taken on different occasions. The collar of his jacket goes from misaligned to correct, his hair goes from ruffed to "done" and the lighting goes from hard and sharp to soft. (00:18:50)
Revealing mistake: In the scene in the kitchen, Lucille Bluth takes a bottle of "Bushmills" (a brand or Irish whiskey) out of a grocery bag during a scene in the episode; however the liquid inside is clear/transparent and obviously not whiskey.
Visible crew/equipment: You can briefly see part of a camera and camera man at the right of the screen after Tobias and the counselor finish their "scene" during therapy.
Visible crew/equipment: During the "On The Next" segment at the end of the episode, Buster has replaced his hook with Franklin the Puppet. While Franklin speaks, a camera man is seen on the right.
Continuity mistake: After the chase, when Michael, George Sr. and Gob all fall to the ground, George Sr. rolls as he lands and ends up a couple of feet away from the others. The shot cuts and he is now right next to them.
Visible crew/equipment: On the boat when George Bluth Sr. says something about the SEC if you look in his glasses you can see a camera man in the reflection.
Not Without My Daughter - S1-E21
Audio problem: In the final scenes where Tobias is shooting at the rats you see the shot blasts after each firing of the gun. On the fourth shot there is no visible blast but there is still an audible gunshot when it happens.
Continuity mistake: At the restaurant, as Lucille is saying "I've been a horrible mother", her hand goes from the base of her wine glass to holding the top of it, instantly between shots.
Continuity mistake: When Lindsay and Michael are talking in the kitchen we see Lindsay start to remove her sunglasses. The shot changes and the sunglasses are now off, but are not in her hand or on the counter.
Top Banana - S1-E2
Continuity mistake: When Michael removes the paper bag from the fridge with the note on saying, 'Dead dove, do not eat', the handwriting and layout of words on the note changes when shown from a different camera angle.
Continuity mistake: When Kitty is telling Michael that his mother is on the phone, she is holding the telephone receiver up to her ear, but when the camera angle changes she has the receiver held down by the desk.
Audio problem: When Michael is walking into the hospital room, he says "Where's the baby?" to Maggie. However, his lips do not match up with the word "baby", and it appears he is saying something else that is not heard. (00:19:00)
Continuity mistake: When George Michael goes to Lucille Bluth to ask her if he is related to Maeby, he first knocks on Lucille Austero's door, but in the next shot he is being let into the Bluth apartment by Lucille Bluth. (00:11:10)
The One Where They Build a House - S2-E2
Revealing mistake: When Michael is talking to George Michael, Oscar, Buster, and Tom Jane about the house they are about to build (and what they all want out of it), it is clear in the wide shots showing all five that Tom Jane is not present; the person standing in for him has a completely different haircut and wears glasses. They try to hide it but it is obvious at several points. (00:14:15)
Continuity mistake: In the opening scene when Lucille is unloading groceries, the paper bag on the table keeps changing from being crumpled to smooth.
Continuity mistake: When Lindsay first visits George Senior in prison, she is wearing a hat. From some angles only one ringlet of hair is sticking out of the hat, but from other angles there are several pieces sticking out.
Chosen answer: "The One Where They Build a House," S2E2.