Continuity mistake: As Steve and D.J. go to sit down in Steve's apartment, D.J. puts her denim jacket down on the back of the couch. Then as Steve's cousin leaves, it disappears, only for it to then reappear as Stephanie and Kimmy attempt to leave. It is then still missing when Stephanie leaves, only to then reappear in the very next shot as the scene draws to a close. (00:10:00 - 00:13:25)
Continuity mistake: When DJ and Stephanie are done playing with the twins and Jesse comes in, he takes the booties off their feet, thinking that they still had their hospital bracelets on. While he is still in the kitchen, you can see that the booties are on the table between the twins. These keep changing positions in between shots, even when Jesse goes in the living room leaving the twins unattended.
Continuity mistake: The address of the Tanner house is 1882 Gerard Street, but in the scene where Joey brings Roxy home for a family dinner for the second time, and they are standing outside of the front door, you can see the numbers on the house are 1892 instead of 1882.
Continuity mistake: Watch Michelle's feet when she is jumping on the bed. At first she has two socks on, then when jumps off the bed, she has only her right sock on. Then, after Aaron says he should be president of their club, Michelle has both her socks. And when the club decides to pick the one who gets the Mighty Mutant Super Fortress as president, Michelle only has her right sock on.
Continuity mistake: Jesse is bouncing a baby on his knee and humming the theme to Bonanza, but in another episode (the one where Jesse graduates), he states that he hates that song because his dentist used to hum it while he drilled his teeth, so when he hears it his teeth hurt. When he hums it in this episode his teeth don't seem to hurt.
Deliberate mistake: Jesse is looking for his keys and thinks Michelle took them. Near the end, Joey comes home and finds the keys in the door, hands them to Jesse, who puts them in his pocket. A few seconds later Danny comes home, takes Michelle into the kitchen. Joey and Jesse exchange a couple lines and go into the kitchen, where Michelle is sitting in a booster chair at the table. The 3 guys chat for a few minutes, then Jesse is going to leave, but can't find his keys again. It turns out Michelle has them. But how did Michelle get them? She was in the booster seat the entire time Jesse was in the kitchen and Jesse never went to that end of the room, so there's no way she could have gotten them.
Continuity mistake: When Joey is ironing, DJ starts talking right as Joey sets the iron down on the ironing board in front of him. Then Joey starts talking and the iron is still in front of him. But while he's talking the shot changes and the iron is now seen behind Joey on the countertop. Then a few seconds later the iron is on the ironing board again. (00:03:05)