Revealing mistake: In the train scene when Mr. Bean plugs his ears with his socks you can see that he didn't use the ones he was actually wearing before. Once he took them off he placed them in front of him but reached slightly to his right for the ones he plugged in his ears. Also those where still flat like after ironing them and didn't look worn at all.
Revealing mistake: When the dog jumps up at the Postbox, it wobbles slightly, meaning that it's a prop and not a real Postbox.
Do-It-Yourself Mr. Bean - S1-E13
Factual error: On a close-up of Mr. Bean's calendar at the very beginning, New Year's Eve 1993 is depicted as a Saturday, but in reality, this day was a Friday. (00:00:40)
The Return Of Mr. Bean - S1-E2
Trivia: Just before the scene where Mr Bean meets the Queen, the commentary is actually done by Rowan Atkinson.
Question: In the first act when Bean can only get a decent TV signal by sitting in a certain part of the room, we can hear the soundtrack of a programme "on" Bean's TV. Does anybody know what programme Bean was trying to watch please?
Answer: Don't think it was an actual programme; more likely just sounds they recorded themselves.