Few things were as damaging to cherished childhood memories as Investigation Discovery’s docuseries “Quiet on Set: The Dark Side of Kids TV.” The scathing documentary, which came out in March, took a look at a number of allegedly salacious work environments, including children’s media conglomerate Nickelodeon. Specifically, “Quiet on Set” gave a particularly unfavorable look at former Nickelodeon showrunner Dan Schneider, who helmed a number of the network’s most successful pre-teen shows, like “Zoey 101,” “iCarly,” “Drake & Josh” and others. The work sets overseen by Schneider were allegedly …