Continuity mistake: Sydney and Nigel are talking with Robert Blaine at the beginning of the episode. When he mentions the Nepalese people there's a close-up on them. One student wearing a white T-shirt is walking up some steps - but in the next shot he is walking down other steps situated earlier in his path. A few seconds later, another flub with an extra; Nigel stops the museum curator just as an extra wearing white clothes enters the frame, but the person is gone in the sudden cut. (00:06:25)
Smoking Gun - S1-E2
Continuity mistake: In the prologue, Young Murray finds a man he does not know sitting at a table. He advances towards him in a wide shot of the room, and the man positions his left hand on the corner of the table, but in the following closer angle on him, his hands are close together exactly like in the initial shot by the same angle. It's like the middle one never happened. (00:03:10)
Visible crew/equipment: When Sydney taps the shoulder of the baddie who nearly disarmed Nigel, a strong light is cast on his face just before the cut. Nobody was supposed to point a flashlight or a torch at the fight. (00:38:15)
Continuity mistake: When Sydney Fox retrieves the parchment with the map, she holds it differently (probably turned 180°) between the close-up and the reverse shots. It also should be noted that the world-class archaeologist just casually dumps on the floor like a piece of garbage a ornate XVI century flask. (00:23:50)
Continuity mistake: Nigel wonders why prisoners write on walls. He moves the flashlight from the left hand to his right. When he walks back and the shot changes though, instantly it is back in his left. (00:22:10)
Continuity mistake: Nigel accidentally (unconvincingly so) steps on the Beautiful Nun 's bathrobe in a close-up. His toothbrush hand is down his hip, in frame, but when they both gasp in a reaction shot, the toothbrush is between them. (00:17:30)
Revealing mistake: In the shot when the captain supposedly beheads the nun, her head flies off, but as the body falls forward, you can see the hood of the mantle that was covering the head is intact. (00:02:25)
Continuity mistake: When Sydney receives the bowl from Buddha in the flesh (of course she would) her hands are under it, but in the next shot they touch the rim. (00:40:40)
Continuity mistake: When shirtless Nigel knocks some rocks off the Buddha's exterior, he leans back with both arms spread. In the next shot, Tia Carrere's arm crosses with his, but he was on his own, at distance from her. (00:27:10)
Continuity mistake: When Nigel spots the skeleton inside the Buddha statue, in its close-up it is lit very differently compared to the rest of the scene. (00:29:30)
Revealing mistake: When the captain shoots the man that flees the scene in panic, there's no sign of a wound, burn mark, or tear on the victim. (00:03:20)
Revealing mistake: In Bodh Gaya, Sydney knocks out Stewie Harper with a straight punch of supreme cartoonish phoniness. (00:20:30)
Other mistake: When looking for the floor where the diamond is cut Nigel sees a sign which he translates as "Brown Duck." The sign however is misspelled Bruin Eend Kleren. In Dutch it would have to be Bruine Eend Kleren. (00:37:25)
Plot hole: Sydney is able to surmise from the artwork (we could also say from the writing, but her rival is one step ahead of her for 2/3 of the episode and it is established that he does not know the language) the precise location of the koi in Lumbini. The map is 150 years old, but there's no way even with a big stretch of imagination to buy that they both'd be able to pinpoint with such ease and certainty its location in the basement of a random building in the bustling market center of a town, that surely changed plenty during the past century and that does not bear any special landmark.
Factual error: On a lorry for Lumbini, Nigel comments about this being his first day of work. Even assuming that Nigel and Sydney met first thing in the morning and they just took off for a flight that was leaving for India really soon, it is a flight that takes 17-20 hours. Even considering the time difference between "the US" (the actual location is never specified) and Bangalore (closest hub to their Nepali destination), it is really a stretch, since it's impossible that he did not sleep during the flight, and of course it's just hilarious that they'd have a chat about it only after an intercontinental flight.