Continuity mistake: When Frankie gets her breakfast spilled on her shirt, it goes from a bit stained to really stained on its front.
The Middle (2009)
1 continuity mistake in Mother's Day
Starring: Neil Flynn, Patricia Heaton, Charlie McDermott, Eden Sher
Genres: Comedy
Continuity mistake: Sue says that she "matured" aka got her period, on Sept 21, but in the episode "Forced Family Fun", when they go camping and she gets it, they go before school starts, which is well before the end of September.
Forced Family Fun: Part 1 - S3-E1
Trivia: When the guy who appeared in the campsite in Frankie's flashback, he says to Frankie "do I know you?" The man is Ray Romano from Everybody Loves Raymond, another show Patricia Heaton starred in.