In the very first episode of The Twilight, titled Where is Everybody? - October 2, 1959, there is a PJF sighting. The main character finds himself walking down a road towards a completely empty town. He goes in all of the businesses looking for people but he cannot find anyone. He does find things like half eaten plates of food and still smoking cigars, so it seems like everyone has just vanished. At one point he goes into a drug store/soda fountain and walks over to the book racks. There we see several copies of the first paperback edition of THE GREEN ODYSSEY.