Pipe Dreams - S3-E11
Deliberate mistake: When Zack brings an oil covered Becky to the biology teacher, you can see that it's a fake duck.
Saved by the Bell (1989)
1 mistake in Pipe Dreams
Starring: Mario Lopez, Mark-Paul Gosselaar, Dustin Diamond, Lark Voorhies
Zack: You know, I've finally found out the best thing about high school, once you graduate you don't have to come back.
Trivia: The high school hallway used is later used in the Disney series That's So Raven.
Question: What happened to Kelly and Jessie in the episodes with Tori? Can someone explain what went on there.
Answer: As far as I can tell Jessie and Kelly decided to leave the show because their contracts were up and they wanted to pursue other things. But there were still episodes of Saved by the Bell left to tape so Tori came along to fill that void. Jessie and Kelly were supposedly still at Bayside, but they were "off-screen." The Graduation episode was filmed before Kelly and Jessie left the show.
ACertainShadeofGreen