8x01 Lock, Stock, Some Smoking Barrels and Burton Guster's Goblet of Fire
First Aired: Jan. 08, 2014 on USA
Summary: Gus attends a Harry Potter convention in London in the Season 8 opener.
- Goof (factual errors): The Interpol agents are shown as being regular policemen capable of making arrests. However, Interpol acts as an information clearing house and liaison between different countries; they do not have authority to arrest anyone.
- Goof (errors made by characters, possibly deliberate errors by the filmmakers): At around 23 minutes, Gus (aka "The Wiz") throws exploding powder and calls out "magic" words "Expecto Patronum," but in the Harry Potter books the Expecto Patronum spell doesn't cause any kind of explosion. It scares away an evil ghost like creature called a "Dementor."
- Spot the Pineapple: in the opening credits, the screen reads "Psych created by Steve Franks" and a pineapple is on the screen.
- When showing the newspaper coverage in the beginning of the episode, the pictures are moving. A nod to the moving images in the Harry Potter series and the reason Gus wanted to go to England.
- With this episode, Timothy Omundson becomes the only regular cast member (beside James Roday and Dulé Hill) to appear in every episode of the show.
- The final slow motion fight scene is a nod to the Guy Ritchie movies (Snatch, Lock Stock, etc.)
- When Shawn is wildly guessing names of his doppelgänger's mother during the interview with Interpol's director in the beginning, he uses the names of Glen, Mulva, Rollergirl, and Starchild. Glen is most likely from "Glen or Glenda" (1953). Mulva is probably from Seinfeld, "The Junior Mint" (season 4, episode 19), but given Shawn's penchant for obscure movies, could be from "Mulva: The Zombie Ass Kicker" (2001). Rollergirl is from "Boogie Nights" (1997). Starchild obviously is from "2001: A Space Odyssey" (1968).