Turtle-Lou, right, will join Donkey Hodie on new adventures in Someplace Else on the PBS series. Trolley and its distinctive dings are an “undeniable connection” between “Mister Rogers’ Neighborhood” and “Donkey Hodie,” says the show’s production designer Justin Vandenberg. The series is set in Someplace Else Someplace Else in “Donkey Hodie.” In the March 11, 1968 episode of “Mister Rogers’ …