The Personality Kid is the sixth episode of Season 3 of The Brady Bunch, and the 55th overall episode of the series. Written by Ben Starr and directed by Oscar Rudolph, it first aired 22 October 1971 on ABC.
It is the episode that gave birth to the catchphrase, "Pork chops and applesauce."
Peter's Humphrey Bogart impression is part of his ill-guided attempt to create a new personality for himself, after being told at a dull party that he has no personality.
A dejected Peter comes home early from Jane's party because only one person talked to him at the party, and the only thing that person told him was that he was dull and had no personality, which he begins to believe. After failed attempts by his siblings to cheer him up through trickery, Mike finally suggests that if Peter isn't happy with his current persona, that he should develop another one. Peter's initial attempts at developing that new personality are taken straight from characters he sees in old movies, even repeating the family's dinner menu, "pork chops and applesauce," in a Humphrey Bogart impersonation. His parents tell him that he isn't developing a new personality but stealing an old one. Peter finally settles on being the joke teller as his new personality, and buys a joke book. His parents allow him to hold a party to show off his new personality. When he tries the jokes at his party everyone knows the punchlines. While trying to keep his party afloat, Bobby and Cindy, who are on a safety drill campaign, call a surprise fire drill, forcing everyone to leave the house.