Factual error: While it is true that lithium carbonate can be used to treat depression and other psychiatric disorders, it cannot be administered in gaseous form. It is a very stable salt and only starts to form vapour at 1,310 degress Celcius. Spraying it about as a 'mood stabliser' at that temperature, as Kryten does, is going to kill everyone on the spot.
Factual error: At the beginning of the intro, the narrator says that the only way to resurrect a vampire is with a sacred rite that can only be performed once a century when the moon is in the eighth house of Aquarius. In Astrology, the eighth house is Scorpio.
Odd Man Out - S3-E6
Factual error: Near the end of the episode when Kevin and Paul are riding their bikes toward each other before they stop for a brief hello of sorts, Kevin rides past a couple cars parked on the street that were built in the early 1980's. A red Pontiac LeMans and a black Pontiac Grand Prix-both were parked in front of the 1969 Ford Thunderbird.
No Talking - S2-E12
Factual error: When Becky locks Roseanne out of her bedroom, Roseanne heads to the garage for a screwdriver to take the door off the hinges - an impossibility since the hinges are on Becky's side of the door. In the next scene, the door is off the hinges.
Suggested correction: Roseanne could have waited until Becky opened the door at a later time. She would have to come out at some point. Dan could also have ordered her to open it, and Roseanne then took it off the hinges. It was also Darlene's room, so Becky would have to let her in. Roseanne was making a point and to make sure Becky didn't do it again.
This is the most ridiculously convoluted "correction" ever. It was a monumental mistake, or at the very least, they hoped viewers wouldn't notice.
Yeah, not an impossibility whatsoever considering even if the door had to be forced open, it was going to be taken off the hinges. Classic 80's/90's parenting.
Peeled Grapes and Pedicures - S1-E6
Factual error: Gracientus threatens to assault Aulus Paulinus by shoving a porcupine up his toga. A Roman in AD 123 (or any European, including the Britons for that matter), would not have had the slightest idea of what a porcupine was. He might threaten him with a hedgehog, but a porcupine? Never.
Factual error: Teddy says that he hates the stories by Wodehouse about the stuttering Bertie Wooster. However, Wooster only had a stutter in the 1965 TV series "World of Wooster", not in the original stories or in any other adaptations such as "Jeeves and Wooster." "You Rang" is set in the 1920s, and thus 40 years too early to have seen that program on television.