This dark and amazing animation about the end of humankind aired on Ed Sullivan in 1956

Joan and Peter Foldes directed this incredible animation, titled "A Short Vision," in 1956. The couple created the film -- based on a poem by Peter -- in their kitchen. It was funded by a grant from the British Film Institute's Experimental Film Fund. From Wikipedia:

Ed Sullivan saw A Short Vision in England, and promised an American showing. He said his motive was a "plea for peace" However, he may have shown it because of his relationship with George K. Arthur, A Short Vision's distributor. Ten days after he saw it, Sullivan showed A Short Vision on his popular Sunday night show The Ed Sullivan Show on 27 May 1956. Sullivan told the audience to tell their children in the room to not be alarmed, because of its animated nature. The film was very popular, and it was shown again on 10 June; Sullivan told parents to take children out of the room.

More on the film's history here: "A SHORT VISION: Ed Sullivan’s Atomic Show Stopper" (CONELRAD)