Continuity: When the house is shown from the front exterior, there is a window on the left, but when seen from the interior there is a hat rack there.

Continuity: When Shawn discovers that Jack is his brother, Shawn says he always wondered what it was like to have a brother and that he was an only child. However, in season 1 Shawn is on the phone with his older sister and later in the series, Cory video tapes Shawn's older brother stealing a computer.

Continuity: Shawn claims his "sister, Stacey" uses the straightening stuff all the time. This is the only mention of her ever during the entire run of the show; and when Jack joins the show he is established as Shawn's only sibling.

Revealing: When Eric first meets Mr. Feeny's niece, he throws a bag of mulch. When the mulch lands, you can see the fake grass move, and the fake background swings a little bit.

Continuity: When Allen is telling the rocket story to Cory, he metions the "Franklin Space Museum." The real place in Philadelphia is actually called "The Franklin Institute."

Continuity: Cory and Harley are out in the hallway after the bell rings, and Cory says he should be in history class, then when they are in Mr. Feeny's office, the bell rings again and Cory says his next class is American history.

Continuity: At the end of this episode when Eric & Cory are talking about Cory's date, Eric walks from his desk to the bed and we see the bedroom door is open, but when he walks to his desk from the bed the door is then suddenly closed.

Continuity: When Cory and Shawn are auditioning for "Guys" and they're talking about the first person they pick, Cory says,"He's shorter than me and..." but after they pick both guys and he's talking to them, you can see that Cory is the shorter one.

Factual error: Cory tries to stand up and get out of the ride while it is starting, but in reality there would have been a lock on the safety bar before the ride starts.

Continuity: When Eric is talking to his tutor in the hallway after recieving an A- on a test, there is a poster in the background for Sex Ed. This changes though, from saying "Sex, Ed?" to "Sex Ed" throughout the scene

Continuity: When Cory and Shawn are on Cory's bed they throw a ball out the window. When the camera comes back on them you can see that ball on Eric's bed. But just a second later the ball is gone.

Continuity: At the end of this episode, you see Griff standing with Joey and Frankie. He's wearing a jacket over a pink button down shirt that has a red collar and red accents. He sees a girl, and the camera moves to Joey who stands up on the bench and screams at the girl, then when the camera goes back to Grif, he's wearing a jacket over a plain old faded red shirt. I wonder what happened to the other shirt.

Continuity: In this episode, Alan says Eric was 4 in 1978. That would mean that Eric was 20 in 1994. But Eric is driving in 1993 at 16.

Factual error: In this episode, Little Cory is a small pink pig. In a later episode, Little Cory is shown again, but he is a fat black pig.

Factual error: In this episode, Turner goes into a room and says it's his bedroom. But in "My Best Friend's Girl" Cory goes into that room and they say it's a closet.

Continuity: When they catch Janitor Bud on tape, there is a time clock on the wall. Through the rest of the episode there isn't.

Factual error: Throughout the series we are told over and over that Cory and Sean have known each other forever. We see the boys and Topanga meet when they are about 6 years old, and Cory says at one point that Mr. Feeny has always been their teacher. Yet, in this episode Mr. Feeny says Sean was born in Ohio, lived in Oklahoma and was in and out of 5 schools by the age of 12. This implies that the boys did not meet until middle school, (age 12, when Sean arrived in PA.).

Factual error: In the episode Class Pre-Union, they were the class of 2000. In the episode Graduation, they were the class of 1998.

Continuity: Chet says he's spent the last year searching for his wife, but, when he left, Shawn was ending 7th grade and now Shawn is supposed to be sixteen

Continuity: When Eric answers one question, almost the entire group of girls leaves. In the next scene the stage is filled again