Other mistake: When calling their next patient, the nurses look at the small screen to find out what number is next. After Mr. Bean has rotated the device, however, a nurse calls number 92 before the screen displays the 9. (00:06:22)
Merry Christmas Mr. Bean - S1-E10
Visible crew/equipment: When Irma asks Mr Bean if he has the turkey on, there is a shadow of the overhead mic on the wall.
Back To School Mr. Bean - S1-E15
Continuity mistake: Mr. Bean's car has a missing wheel cover on the left front wheel at the beginning of the episode, but it suddenly appears in the end before it gets destroyed by the tank. (00:04:23 - 00:22:10)
Continuity mistake: Just after Mr. Bean's hand is stomped on by one of the boys, and he lets go of the diving board, the camera pans back to show him falling into the water, but the same shot shows no-one else standing on either of the diving boards. The two boys should have still been standing on the higher one.