Two and a Half Men (2003)

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.

I Can't Afford Hyenas - S1-E14

Charlie: Your dad owns a bank?
Rose: Well no. Me, my brother and sister own 49%.
Charlie: Really.
Charlie: What about your mum?
Rose: Oh she doesn't have a bank.
Charlie: Oh.
Rose: She's in oil.

Twanging Your Magic Clanger - S8-E6

Trivia: When Charlie and Alan talk about the age of Charlie's girlfriend Michelle, Alan predicts Charlie will have been dead for some time when she gets 70. As it turns out Alan was right, due to Charlie's untimely demise between Season 8 and Season 9.

Tanngrisnir

Show generally

Question: What's the name of the episode where Charlie and Alan are hiding in the Toilet and Alan says "Charlie" and then Charlie says "I told you it might take a while"?