1997: Arthur episode features Binky insisting that a (fictional) Mondrian painting in a museum is hanging sideways, and eventually proving he's right with the help of art historians

2022: art historians discover that an actual Mondrian painting has been hanging upside down in museums for 75 years (https://www.theguardian.com/artanddesign/2022/oct/28/mondrian-painting-has-been-hanging-upside-down-for-75-years)

happy Monday. I hope this tickles you as much as it does me