Revealing mistake: When Allison is "seeing" the Massey house going up in flames, James flinches when the painting falls off the wall behind him, even though it is only supposed to be happening in Allison's vision.
Medium (2005)
1 revealing mistake in The Reckoning
Starring: Patricia Arquette, Sofia Vassilieva, Miguel Sandoval, Maria Lark
Plot hole: In this episode, the Duboises make such a big deal about Ariel being old enough to finally learn to drive. However, two episodes previously ("Things to Do in Phoenix When You're Dead") Ariel drove to school with Joe, and Joe complimented her on her prowess.
Joe Dubois: Ever since you made the decision not to go to law school, to go to work for the D.A. as a consultant, I don't know, you seem kinda.
Allison Dubois: Bitchy? Cranky? Pissed off?
Joe Dubois: You can read minds.
Being Joey Carmichael - S4-E15
Trivia: In several scenes, for instance when Allison is talking to Teddy's ghost in the kitchen or when they're eating, you can see the names "Harlow" and "Enzo" spelled out in magnetic letters on the fridge. These are the names of Patricia Arquette's (Allison's) children. You can see the names separate and together in some other episodes too, but rarely as clearly as in this one.