Factual error: Nick tells fellow vampire Aristotle, "You still owe me for that time at the Battle of Hastings." Nick was brought across in 1228, or so the intro told us every week. The Battle of Hastings, as any British school kid knows, was fought in 1066, over 100 years before Nick's mortal birth. (00:29:30)
Factual error: Batman is in Japan and tracks down Kyodai Ken by using Caller ID, which returns a seven-digit "555" number. Telephone numbers in Japan have 8 digits.
Factual error: In many episodes, cars which are said to be owned by a character have a Certificate of Fitness on their windscreen. Private passenger vehicles in New Zealand under 3.5 tonnes have a Warrant of Fitness, not a Certificate of Fitness. This means these cars are most likely rentals.
Framing of the Shrews - S3-E29
Factual error: Alison is in her office in Hong Kong and takes a telephone call from Brooke, calling from D&D in Los Angeles. It is daylight outside Alison's window and the office is busy around Brooke. There is a 15-hour time difference between Hong Kong and Los Angeles; it is not possible to have normal business hours in both locations at the same time. (00:14:00)