Other mistake: September 12, 1973 - as Pat Phoenix walks through a door, the camera smacks into the back of her head with an audible thump. Once she enters the room, she glances angrily back at the crew, and a boom mic drops into shot to boot.
Continuity mistake: In the episode on 13th November, 2020, the Mr. Men book set changes positions throughout the episode. (00:14:06 - 00:30:22)
Other mistake: The opening credits on the first ever episode of Coronation Street in 1960 give the copyright year in Roman numerals as MCMLXIX, which is 1969, and not MMX, which is 1960. (00:00:01)