Shoes, Hats, Pickle Jar Lids - S5-E9
Revealing mistake: When Charlie is in the Ferrari, his gets a call from Teddy. When Charlie brings the iPhone to his ear and talks to Teddy, you can see that the iPhone is upside down showing that no one actually called his phone.
Help Daddy Find His Toenail - S5-E6
Revealing mistake: When Judith slams her door the wall wobbles. (00:17:30)
Help Daddy Find His Toenail - S5-E6
Revealing mistake: When Charlie reads the paper after the banquet the text is all the same, just repeated. (00:16:20)
Answer: That would be "Corey's Been Dead For an Hour" in season 4, episode 9.
Super Grover ★