Teenage Mutant Ninja Turtles co-creators Peter Laird and Kevin Eastman later admitted that they didn't like this animated series for many reasons, including the change of tone from the comic book (going from serious to more comedic in the animated series), making the characters and story lines more family friendly, the extra characters that were created specifically to sell toys (in particular, they didn't like Rocksteady, Bebop and Krang), and the meddling of network executives on scripts. However, since they didn't own the rights to the TV version of the series, there was little they could do to change it. Later, they would sell all rights to the TMNT franchise to Viacom, who created series that were a hybrid of both the comic book elements and the more family friendly/comedic elements.
If I had hands I would cover my ears, if I had them!
The turtles are often referred to in the series as amphibians even though they are reptiles.
In 1991, CBS aired the show during their Saturday Morning line-up, with all new episodes and a new opening was added too. Along with the package came 'Turtle Tips', a portion of the show that gave useful information.