Star Trek: The Next Generation (1987) - 97 mistakes in entire show

Visible crew/equipment: In the episode "Reunification part 2" when Picard, Spock, and Data have just escaped from the female Romulan commander, when they are walking out of the room look at the green glass ornament - you can see reflection of a crew member.

Continuity: When Picard asks the Ferengi if they are withdrawing their surrender, Yar's arms pop back and forth from folded to extended as the shots change.

Continuity: After drinking some spiked Champagne from Lore, Data falls backward, yet lands on his face.

Visible crew/equipment: In the episode "where no-one has gone before" from series 1, near the start, just as Riker says "you have all the time you need", the engine consultant stops and turns around. As he does so, look above his head and you can see a microphone hanging down. The camera quickly adjusts so it's not visible any more.

Continuity: In the beginning of this episode, Riker orders Geordi(who was navigator at the time) to increase to Warp 6. In response, Geordi replies, "Aye sir, Full Impulse."

Continuity: In the episode 'Yesterday's Enterprise' (season three, episode 15), watch the final scene with Geordi and Guinan in Ten-Forward. Although time and the universe has returned to normal, Geordi is still wearing the uniform from the alternate timeline (note the sleeve detail, and the extended neck piece).

Visible crew/equipment: When Riker tells Yar to open a channel to the Jarada, you can see the reflection of a boom mike in the workstation along the back wall behind him.

Continuity: In this episode, when Riker makes his log entry, he says the stardate is "4124.5," the 4-digit style of stardates from The Original Series, rather than the 5 digit style used in The Next Generation.

Revealing: In the scene where Barcley reappears on the transporter with the crewmember, they both fall to the ground. The transporter chief had put up a forcefield around the transporter chamber, in case something goes wrong. However, when the crewmember falls to the ground, his foot goes right through where the forcefield is meant to be. It is still active, as only a few seconds later we see it being deactivated.

Plot hole: Data calculates the time to reach the Neutral Zone in time by assuming maximum warp speed. After the solution, in the last minutes, Picard orders only warp six. With this speed, they won't get there in time. Aren't they in a hurry anymore ?

Revealing: In season 5, "The Game," the brainwashed crew members hold Wesley's eyes open to force him to see the mind-controlling game. Their intention is to prevent him from closing his eyes, which would protect him from the device. While they are doing this, he blinks.

Continuity: When Dr Marr and Data are talking in the cave about her dead son, she is holding the tricorder upside down.

Factual error: When Geordi calls Data while Data and Timothy are building the sculpture, Data refers to Lt. Commander Geordi La Forge as, "Lieutenant La Forge," instead of the militarily correct short form, "Commander."

Factual error: 30 seconds in Geordi says: 'surface temperature -291 degrees Celsius'. (The scale only goes down to -273.15 which is absolute zero).

Other: About two minutes into the episode, in a scene where Riker and Picard go to meet admiral Jameson in the transporter room, just as they are about to enter the turbolift Picard opens his mouth really wide as if making a funny face to someone inside the turbolift. Although it was filmed from the side it is quite easy to spot.

Continuity: In the scene right before the shuttle's crew finds the Romulan ship and the Enterprise, Geordi calls the shuttle craft's cockpit to explain the temporal disturbances. Captain Picard, Troi and Data walk into the shuttle's cockpit room and Troi puts her right arm on Geordi's chair. As Geordi, Data and Captain Picard are talking you can see Troi's wrist hanging off the chair, but when the camera cuts directly in front of Geordi her whole wrist is on the chair. The camera then cuts back and you can see that Troi's wrist is still hanging off the chair.

Continuity: When the computer instructs Riker to turn right, he turns to the left.

Continuity: The creators re-did the titles from the third season on, but only from before the shot of the ringed planet, and they didn't make sure they matched. Compare the movement of the stars inside the rings and the star field outside the rings - they move in different directions compared to each other.

Revealing: When Tasha Yar and company first enter Ten Forward in the alternate timeline, watch through the doors as they open. An extra can be seen stood still in midstride in the passageway, before nervously noticing that the doors have already opened and that she has missed her cue to begin walking past. She then begins purposefully marching down the passage.

Continuity: In the scene where Data is brushing Timothy's hair into a copy of his own hairstyle, he stops, kneels down and asks Timothy "Timothy, are you having bad dreams?" In this shot there is a big tuft of hair on the right side of Timothy's head that sticks straight out. When their conversation is over and Data stands up in the wider shot, all of Timothy's hair is in place.