What was the name of the screen that displayed films on Mister Rogers' Neighborhood?

The screen that displayed films on Mister Rogers' Neighborhood was called Picture Picture.

Picture Picture was a rear-projection motion-picture and slide projector built into a large picture frame. In the show's early years, it appeared to operate almost like a friendly character: Fred Rogers could ask it to show films or slides, then thank it and receive a “You're Welcome” message on the screen.

The device supported the program's distinctive blend of education and imagination. Rogers used it to introduce viewers to factories, artists, animals, music, science demonstrations, and other real-world subjects. Its framed screen made the equipment feel like part of the television house rather than ordinary studio machinery.

After 1970, Picture Picture no longer operated magically. Rogers inserted film, slides, or videotape into the projector and controlled the presentation with a wired remote. A common mix-up is to call it the Picture Box or simply a television screen, but Picture Picture was the show's named projection device.