The secret word in this episode is PLACE, which is said and screamed at six times, counting one time in Japanese. Pee-wee asks Oki if he can say the secret word in Japanese. "Hai" (Yes), says Oki - "Tokoro", at which point Japanese text is shown on the screen (and everybody screams, of course).
At one point after Pee-wee reads Conky's translation of the all-Japanese letter from his pen-pal, Oki Doki , Magic Screen suddenly says, "Let's take a look at this". S/He (i.e., Magic Screen) shows a stop-motion animation film from a series called "Joop Geesink's Dollywood", titled "The Interesting Guest" and originally released in the late 1940s. Here, the title is "El Mejor Huesped" ("The Best Guest"), perhaps a release for a Spanish-speaking audience. In any case, it seems somewhat out of place with the Japanese content of much of this episode.
Mrs. Rene obtains the secret word in this episode.