The 1987 Garfield High School graduate is excited that an all-new animated show based on his New York Times bestselling book series, “The Sisters Grimm,” premieres Friday, Oct. 3, on Apple TV+. “The Sisters Grimm” premieres Friday (Oct. 3) on Apple TV+. As for those diehard readers of “The Sisters Grimm,” what’s your message about turning their precious youth literature series into an animated show? If you loved it when you were 9 years old, you are going to get the “Sisters Grimm” you always hoped you’d get. I’m trying to enjoy it while it lasts, but I’m thrilled that these things — after all this time — are still connecting.