I remember watching that series and thinking how crazy it is that maybe 3 events in toy history massively affected everything else to come for all toys. You watched those 3 episodes and all the others after that included something about how they were related to the other 3. Except for Hello Kitty. That was like its own special episode all to itself.
The last apartment I had, the landlord at some point had put very rough outdoor quartz tiles in the kitchen. They were porous and had crevices everywhere so were impossible to keep clean. Our routine became vacuuming for regular cleaning, mopping any sticky spots when needed, and getting on our hands and knees once a year to scrub the tile with soap and brushes. It was the only way to actually clean the tile and the tile would change colors every time we did it. Did I mention that this tile has been installed over 3 more layers of flooring? Classic landlord special apartment.