In this episode, the Joker reacts with surprise that Batman is alive. This is because there was a bat-trap planned for the end, but never filmed as the producers decided against another three-parter.
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Pierre Salinger was John F. Kennedy's press secretary. He later became a foreign correspondent for ABC News.
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There is a photograph of Vice-President Richard Milhous Nixon in the courtroom.
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Batgirl: Little Louy Groovy's so confident.
Robin: The more he's with Batman the more amazing he seems.
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Batman: The mirror's broken Catwoman, and the last cat has crossed our path. From now on all the luck is with us.
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Joker(unwisely lights a match while talking): Look, there it is, the gunpowder it's all clearly marked.
Robin: Gunpowder?
Batman: PUT THAT MATCH OUT YOU FOOL!
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