Hey, imdb folks
The show is called Mister Rogers' Neighborhood.
Just because the logo happens to use the same slash to connect the "r" of "Mister" with the "R" of "Rogers" doesn't mean the show literally should be called "MisteRogers' Neighborhood." It's just a stylized logo, and even in that logo, there are still two distinct R's!
Can you say "discernment," boys and girls? Sure. I knew that you could.