** In Season 1, when Lauren is trying to get a mortgage, the banker serving her tells she doesn't qualify with her income and should try to find something more suitable for a teacher. He's painted as a bad guy and an ObstructiveBureaucrat. Then we roll to 2007 financial crisis. One of its main causes? People having mortgages they couldn't afford, given to them by those banks that didn't really care about credibility of their customers.
** Another one from Season 1: Harry Senate fires off a gun in the Dungeon classroom, naturally sparking outrage from parents and the school board. Flash-forward to 2018 with Florida's new gun control bill that includes a provision to arm school employees following the Parkland shootings.
* SeasonalRot: Season 3 is regarded as the weakest point of the series. A lot of regular cast members left and because of it, writers weren't exactly sure where they wanted to take the series or how to even fill the gaps. Season 4 somewhat bounced back and improved, but it was soon killed by being put in the FridayNightDeathSlot.