Here is the fun fact every fan knows: features the first appearance of a pineapple. When Shawn and Gus break into the police station, a pineapple sits on a shelf in the background. It was a random prop.
The cold open of wastes no time. We are introduced to a young Henry Spencer (Corbin Bernsen) teaching his son, young Shawn, a crucial life lesson: "I’ve got a job for you. I want you to close your eyes and tell me what you see." This flashback establishes the foundational rule of the entire series: Shawn’s "psychic" abilities are actually photographic memory and intense observational skills, honed by a demanding cop father. psych episode 1