TV LEGEND: Itchy and Scratchy weren't based on Tom and Jerry, but on the more violent KNOCKOFF of Tom and Jerry, Herman and Katnip. This one is tricky, because the presence of Tom and Jerry is SO ...

But as Reiss went on to note, the cat and mouse characters were not actually a parody of "Tom and Jerry," and were instead "inspired by 'Herman and Katnip,' a cheap, ultraviolet knockoff of T&J." ...