What were the Teenage Mutant Ninja Turtles renamed in the UK?

The answer is: Teenage Mutant Hero Turtles. We also squinted our eyes when we heard that the beloved TMNT were not known by the same name in the UK, but instead called Teenage Mutant Hero Turtles. TMHT just sounds weird. Apparently, the British government thought “ninja” — just that word — was too violent. Nunchucks were also in the line of fire for UK censors, so Michelangelo's moves were edited to be shorter and less frequent. The name spread across other parts of Europe but eventually reverted back because the phrase “Ninja Turtles” just has too much turtle power to resist.Source