Fat Like Me - S5-E3
Factual error: When we see Tiffani and Stacy talk on the phone with Quinn (on the other end), we hear a call waiting beep from Quinn's end (but the camera still on the two girls' side) and Quinn mentions she's getting a call from Sandi. The mistake is only Quinn herself would have heard the "beep" and the other girls would have just heard Quinn's voice cut off with dead air for a second. Tiffani and Stacy should not have heard that "beep" like it was shown in the episode.
Fruit Picking Day/Daniel Is Big Enough to Help Dad - S1-E11
Factual error: Daniel's dad glues and screws the door bell button to Daniel's treehouse. He does not connect any wires to it or anything of the sorts, nor is there a power source to the tree house. Yet he pushes the button and the bell rings loudly. It is too small to house batteries or a speaker on its own. And the bell was electronic sounding.
Double Dose - S2-E10
Factual error: Season 2 episode 10 "Double Dose": When Superman snatches Parasite's escape boat and hauls it back to Stryker's, Parasite attempts to blast him with a shotgun found aboard. But somehow the animators appeared unable to decide whether the gun should be a double-barrel or a pump-action type; and building a double-barrel pump gun would be impractical due to additional weight and bulk.
Robo Koopa - S1-E52
Factual error: Koopa tries to kill the Mario brothers, Bunsun and Dr. Nerdnik by pushing an electric pole at them. Mario and Luigi use a nearby fire hydrant to protect them by having water rush out of it and keeping the pole from crushing them. There is no way a single blast of water can stop a large pole from falling, and the brothers would have been electrocuted as soon as the water hit the pole. (00:07:00)
Reptiles in the Rose Garden - S1-E1
Factual error: When Mrs. President closes the doors, there is a crack between them, but no water pours through it. In the same shot, the water only pours from the bottom of the doors despite the White House being completely underwater. (00:06:55)
Michelangelo's Birthday - S3-E31
Factual error: The very beginning of the episode shows Michelangelo's Birthday circled on the calendar, and it is shown as the second Tuesday of the month as well as being the 13th day. The second Tuesday of a month can never be the 13th. The earliest the 13th of a month can be is the second Thursday.
Suggested correction: This is simply wrong. If a month starts on a Thursday, the first Tuesday will be the 6th, and the second will be the 13th.
Factual error: Squirrels are seen woken from hibernation along with other animals, but squirrels don't hibernate.
Factual error: Dario Brando dies in 1880 (date on the gravestone) but when he was screaming at his son from his bed, Dio was reading "The Rise of Silas Lapham", which while being appropriate for his character, would be published only 5 years laters (started serialization in 1884).
Silence My Companion, My Death Destination - S1-E4
Factual error: The continents on the world map seen in Iron Man's lab are so crudely drawn that they shouldn't pass for an actual map a superhero team would legitimately use. South America looks more like Australia, and what appears to be Madagascar is too big in relation to Africa, and is also on the wrong side of the continent. (00:12:42)
Factual error: Linda calls up Jen the babysitter to come watch over the Belcher kids, so she and Bob can go to Maya and Beckett's loft "party." Jen is in her room talking to Linda over the phone, however her screen still has the red (decline call) button and the green (answer call) button with Linda's name as she talks on the phone. There should only be the 'hang up' button with Linda's name and a running time of the duration of their call. (00:04:22)
Factual error: The forces of Cassiopeia all sport the crown-like "W" sign which is the shape of that constellation... but only as seen from earth! These five points in three-dimensional space (like all star signs named after anything) look like that when viewed from our own planet; but from anywhere else, they aren't shaped like that at all. Why would they chose to see themselves through a very specific angle of view from some other distant planet (earth)?
Factual error: Semi-automatic pistols, rifles and fully-automatic rifles and machine guns never eject spent shell casings in the show.
The Origin of the Silver Surfer: Part 3 - S1-E3
Factual error: When Silver Surfer is battling Galactus just outside the Earth's orbit, Surfer is depleted of his Power Cosmic and looks to draw energy from the sun to replenish it. The sun is pretty close to the Earth's orbit, when in reality it is 93 million miles away.
Factual error: Every episode in the first half of this series begins with the same phrase and the same map of the Italian peninsula. Said map though misspells, in a very Japanese way, the north-eastern city of Trento, wrongly appearing as Torento. (00:00:01)
Factual error: In s01e08, "Q and A", when Yelena is playing chess, we see her use the touchscreen which represents the chessboard. However, the bottom left corner is a white square when it should be a dark square. The board is orientated incorrectly, even though the board on the floor isn't.
Yomigaere! Eiyuu Densetsu - S1-E1
Factual error: When Seiya cuts off Cassios' ear, it pulses on the floor like it's a beating heart. There can hardly be a muscle twitch in a severed ear. (00:05:30)
Factual error: When the X-Men are surfacing after crashing their jet into the dam, Shadowcat is shown phasing through the jet and pulling Wolverine and Beast through with her. Since Wolverine's bones are coated with a heavy metal, he wouldn't be able to float to the surface. He would sink instead. (00:14:57)
What If... Captain Carter Were the First Avenger? - S1-E1
Factual error: In the intro, we are shown how Nazi Germany spreads across Europe - but after showing Denmark being conquered, it is shown to start spreading across Sweden. Sweden was never occupied by the Germans in WWII.
Suggested correction: I feel like this falls under the "Not a mistake because it's an alternate universe" umbrella. We're in an entirely different universe with a different timeline in this episode.
The show also makes a point that the only difference should be the minor choices or events befalling the MCU characters, and how these minor things have huge consequences for them, basically creating a new, alternate timeline. Basic world history before these events is not affected by the new timeline.
Suggested correction: The black spot spreading is not representing territory physically conquered by the Nazis, but more of their sphere of influence expanding. It is a steady spread and not a true representation of the war's progression. You can notice how Switzerland is also covered by the black, even though it was neutral during the war. Nor was Italy conquered, but their ally instead.
The Secret of the Unicorn: Part 1 - S1-E3
Factual error: The man selling the Unicorn tells Tintin that he can have it for 25 dollars. Tintin is Belgian and this is in his home town; they should be using francs in that time period. (00:03:30)
Wax Doll Castle Murder Case: File 3 - S1-E9
Factual error: The culprit merely drops a chandelier from the ceiling in an unplanned move. From that simple action, the whole building - a huge castle - catches fire so quickly you'd think it's made out of papier-mâche soaked in gasoline, not stone.