Beverly Hills, 90210 (1990) - 37 mistakes in entire show

Continuity: In this episode we are (at the fashion show) introduced to Donna's mother for the first time. She is called on stage as Nancy Martin. In all further episodes she is known as Felice Martin.

Visible crew/equipment: When Brenda is talking with Michael Miller, you can see a microphone come into the top of the frame.

Continuity: In this episode, Steve breaks into the school to improve his school grades in order to get into USC, because that is where his Dad went. But when the gang does go to college at CU, Steve's father is an alumni of that college not USC.

Continuity: This is the first episode in which Kelly celebrates a birthday, and it is in March. A few seasons later, Kelly has another birthday, but this celebrated in one of the first episodes of the season and takes place when everyone has just returned from their summer excursions. This would put her birthday in September.

Visible crew/equipment: When the scene changes to Brandon, Brenda and Dylan going to the movies, look closely. You will notice Brenda waiting for Dylan in front of the movie theater. Then later, they show the exact same scene when she is waiting for Dylan to show up on their movie date. It's very quick, but the editors apparently didn't catch it.

Continuity: When they are watching Colin's car chase at television, Colin is wearing an orange shirt. But Colin was wearing a grey shirt before the car chase started, and he is also wearing a grey shirt when he is caught.

Continuity: During the scene where David, Donna, and Andrea are in the casino and Andrea puts one dollar in a slot machine and hits the $500 jackpot, she screams and David tells Donna to get some buckets so that they may put all the coins in them. At that exact moment, they are interrupted by a security guard who asks them for their id's and when he figures out they aren't 21, he asks them to hand over the buckets of coins. At this moment, David and Donna hand over at least one bucket of coins. However, between the time David told Donna to get the buckets and when the security guard questioned them, the gang did not (and had no time to) get to fill up any of the buckets full of coins.

Visible crew/equipment: Brandon and Dylan are in their hotel room and Brandon is talking to Kelly on the phone. Right after she says, "Are you sure you two aren't shackin' up with some biker babes?" it goes back to Brandon and you can see a boom mic above his head. It then continues until about when Dylan walks out of the bathroom.

Continuity: Near the beginning of this episode Andrea is awakened at 3 A.M. by an alarm clock to take a pill to stop her preterm labor. Several times in the episode it is mentioned she must take the pill every 4 hours. Later the alarm goes off at 8 PM the same day and she says "time for the pill again that is not doing me any good". If the alarm went off at 3, 8pm doesn't fit the 4 hour timeframe.

Continuity: In this episode, a main story line revolves around Steve and Kelly's supposed first and only sexual encounter, at the beach club while they were in high school. Sorry, but the early episodes made it clear that they slept together many times while dating, and the first time was in Steve's room while his mother was being interviewed downstairs.

Continuity: When Brandon talks to Jim at the bar in Hong Kong, Brandon's arm moves instantly from resting on the tabletop to holding his beer glass.

Visible crew/equipment: When Clare enters the beach house to find Kelly with Joey, a boom mic briefly dips into the shot.

Continuity: When Rusty leaves the CUTV news room, he has his backpack slung over his shoulder. In the following shot, he picks the bag up off the table and slings it over his shoulder again.

Deliberate "mistake": The interior layout of the Walsh house is different in the pilot than it is in the rest of the series.

Character mistake: When he arrives at his hotel room in Vegas, David is surprised that Ray is performing at one of the casinos. But at the beginning of the episode, Steve told Brandon that Ray was performing, which suggests going to see him was part of their plans. So either (1) Steve shouldn't have known Ray was performing there, or (2) David shouldn't have been so surprised.

Factual error: At the Peach Pit After Dark, David and Tom are preparing for Super Bowl weekend. But the Super Bowl is played at the end of winter, and the gang is all about two weeks away from graduation, which occurs at the end of spring.

Continuity: When Donna talks to David about their childhood, Donna's hand moves from stirring her drink to resting on her arm between shots.

Continuity: During the scene in the kitchen where Brenda is at the table and her parents are talking to her about Stuart and then ask her if she wants a piece of pie, her arms are out in front of her on the table at this point. A split second later (same sentence), a rear camera view now has her left arm up holding her chin. A split second later after that when she answers "no", the front camera view now has her arms on the table as they had been all long.

Continuity: When Colin and Kelly celebrate his selling some of his artwork, the head in his glass of champagne disappears and then reappears.

Visible crew/equipment: When Brandon is talking to Val in the kitchen, right after he says, "She had her moments," you can see a boom mic above Val's head.