For children growing up in the 1980s, there was no mistaking the sight of Slim Goodbody. Clad in a form-fitting bodysuit that featured anatomically accurate illustrations of internal organs—heart, lungs, intestines, muscles, bones, and blood vessels—Slim was hard to ignore. Played by actor and educator John Burstein, Slim Goodbody was the human embodiment of a textbook, leaping onto screens with infectious energy, wide eyes, and a mission: to teach kids how their bodies worked. But among his many educational endeavors, one stands out as particularly strange and unforgettable: The Inside Story with Slim Goodbody, a syndicated children’s TV show that…