Goof: In the beginning of the episode, Alfred says "excellent, Master Robin" while Dick Grayson is out of "uniform" playing the drums.
Alfred: Excuse me sir, your crate is safely aboard. Bruce Wayne: Thank you, Alfred. Barbara Gordon: I saw that immense thing with your name stencilled on it on the pier. What in the world do you have in it? Bruce Wayne: Just because we're traveling, I don't think that Dick should neglect his studies, so we've brought along a thousand key works of literature, his biological specimens and also his own desk. Dick Grayson: Yes, I expect to study hard. Barbara Gordon: It's a good thing you're going by ship, Dick.
Glynnis Johns is best known as Mrs. Banks from the 1964 Walt Disney movie Mary Poppins.
Take a look at the skeleton in the Londinium Batcave!
Rudy Vallee (Lord Marmaduke Fogg) and one of his henchmen Monte Landis (Basil) both had parts in 2 different Elvis Presley movies. Rudy Vallee portrayed Louis Penlow in "Live a Little, Love a Little"(1968). Monte Landis portrayed Georgie in "Double Trouble"(1967).
This is the only 3-part third-season episode of Batman, as well as the third overall and last.
Ireland Yard is a takeoff on Scotland Yard.
Bruce: (to Dick playing the drums) Cool it Ringo.
Bruce is referencing the drummer of the British band The Beatles.
Ireland Yard is an allusion to the Metropolitan Police Service of London, UK called Scotland Yard.
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