Factual error: It seemed like they had several senior years in the show? They had The Prom year when Kelly, Jesse, were there. Then they had senior year when Tori was on the show when they did the senior Class Rings.
Suggested correction: Actually the first senior year was going to be the end of the show. However they wanted to add another season so they had a second senior year and added the new character.
Save the Max - S2-E3
Factual error: When Zack is given the old newspaper with Mr. Belding's article, the headline reads, "Picture on pages 3 and 4." When he looks at the picture, he looks at the middle of the paper, with quite a few pages at both sides of the newspaper. Pages 3 and 4 would be near the front and would be on opposite sides of the same page.