Character mistake: Both Jeremy Clarkson and his guest Sir Michael Parkinson identify "The Four Yorkshiremen" sketch - about four Yorkshiremen trying to outdo each other with their complaints about life - as a Monty Python sketch. It isn't. It is from "At Last The 1948 Show", presented by David Frost, and was first performed by Tim Brooke-Taylor, John Cleese, Graham Chapman and Marty Feldman, although Monty Python have often performed it.
Revealing mistake: Jeremy Clarkson remarks early on in the episode (during the journey to Da Lat) that he would rather "hop to Hanoi." Later in the episode, the trio make a mistake whilst purchasing their train tickets and accidentally travel to Hanoi rather than Ha Long City. The comment made suggests that the plan was to travel to Hanoi all along and the "mistake" was scripted.
