In the original story in the comic books, it is the meteorite that the Penguin attempts to steal instead of the kidnapping plot he pursues in the TV episode.
First appearance of the Bat-zooka, although Penguin and his hench birds seem to have knowledge of its prior use.
Penguin mentions a hideaway in Alaska. Penguins actually live at the South Pole (or in the Southern Hemisphere), not the North Pole. A common misconception that has appeared in productions over the centuries.
Music and dialogue from this story appears on the original TV soundtrack album originally released in 1966.
Over the years it has been debated if Gotham City is really New York, Detroit or Chicago as all 3 are major urban areas with tall buildings and access to a large body of water (for the Bat boat). It is shown on the Bat Cave clocks that when it is 6:00 in Gotham City it is 5:00 in Chicago therefore, Gotham City is either Detroit or New York (est).