Batman: The Animated Series (1992)

Day of the Samurai - S1-E55

Factual error: Batman is in Japan and tracks down Kyodai Ken by using Caller ID, which returns a seven-digit "555" number. Telephone numbers in Japan have 8 digits.

Captain Defenestrator

Trivia: The series was animated on darker (typically black) paper as opposed to standard white paper. This helped aid in the show's aesthetic, and also helped save time when animating nighttime sequences, since they wouldn't have to paint the entire background black.

TedStixon

House and Garden - S2-E6

Question: When does Poison Ivy make her escape? Before Batman comes back to her house or during his and Robin's battle with her plant creatures?

Rob245