A psychic reveals that Peter had a past life in the 17th century as Griffin Peterson, a gentleman who lived in the newly founded colony of Quahog. Originally aired May 17th 2009.
Main/Episode tropes go here:
- Breaking the Fourth Wall: During the course of the episode the characters break the fourth wall on a number of occasions when they are seemingly interrupted by on-screen promotions for fake shows.
- Earn Your Happy Ending: Griffin Peterson and Lady Redbush go through a lot (separated, unhappy marriages to different spouses, pursued by and almost killed by King Stewart) to be together in the end.
- Parental Incest: At the wedding, while Lady Redbush awaits her groom's arrival, Lord Redbush shocks her with an unfatherly gesture by wanting to touch her boobs. Lady Redbush is appalled by this and asks him if is he sick. Lord Redbush fires back that they're a different time.
- Past-Life Memories:
- Peter recalls a past life on his own: he was a strawberry in a garden violated by a neighbor (a worm).
- The psychic does this for members of the group. Joe sees himself as an octopus and all the legs getting bitten off by a shark. Quagmire learns he was Jack the Ripper. The main flashbacks occur when she gives Peter a reading.
- Pervert Dad: Lord Redbush (Carter Pewterscmidt), Lady Redbush's father has an unfatherly attachment toward his own daughter, going as far as to try and grab her breasts on her own wedding day without her consent.
- Retcon: Quagmire mentions the story of how Quahog was founded as told in "Fifteen Minutes of Shame". However, the story was retconned in this episode, explaining that it was only a myth.
- Shout-Out: The title refers to the book The Pilgrim's Progress from This World to That Which Is to Come also known simply as Pilgrim's Progress by John Bunyan, written in 1678.
- "I didn't vote for him" is a reference to the film Monty Python and the Holy Grail.
- The scene of King Stewart and his men riding into town and the song are taken from the film Blazing Saddles.
- Griffin Peterson's talent show musical number is from the film Revenge of the Nerds.
- Harry Mac Afee is a character played by Paul Lynde in Bye Bye Birdie.
- When Peter says "there's nothing in that black bag for me", it's a line from The Wizard of Oz.
- Quagmire refers to Madame Claude as Cool Runnings, a Disney movie about 4 Jamaicans who go on to play in the Olympics for bobsledding.
- Star-Crossed Lovers: Griffin Peterson and Lady Redbush.
- Take That!: In the show a banner is shown saying, "Happy 16th Birthday Madonna". This is a joke about Madonna's age, claiming that she has been alive since the 1700s.
- Yank the Dog's Chain: A vision into Joe's past life as an octopus and he's so happy about his many new legs (tentacles), that is until a large shark swims by and takes all his legs off in one bite.