I watched this with my son and had no idea about some of them. It’s a list of “banned” kids show episodes told via the iceberg format and it starts with The Teletubbies and that lion on wheels with the googly eyes. Apparently that scared loads of kids (I just thought it was silly at the time) and got taken down.
But as he goes down the iceberg, things get darker and more adult and honestly I had no idea about most of them besides the Porygon seizure episode of the Pokémon anime. It was also funny seeing the reasons why some of the episodes got banned, knowing other cartoons had similar themes.