None of these episodes is actually "banned", insofar as there is no legal impediment to their being broadcast. They've simply been voluntarily withdrawn. And as is pointed out, one of them was only temporarily withdrawn and is now back in the broadcast rotation! Additionally, while the Mr. Rogers "Conflict" episode…

That isn't the actual table used in the movie (although it's in the same place). The movie table was circular and large enough to have 8 people sitting round it comfortably.