The Simpsons

Bart the Genius - S1-E2

Deliberate mistake: When Bart is in the genius school, the teacher asks him if he knows what happens if he adds an acid to a base. He replies yes, adds them anyway and the lab explodes and a green goo comes out, turning Bart green. If you add an acid to a base, you just get salt and water.

SexyIrishLeprechaun

Brawl in the Family - S13-E7

Continuity mistake: When Homer's Vegas wife shows him the video in front of Marge, it shows Homer kissing Ned. This didn't happen when she showed it in the Vegas episode.

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The Simpsons Christmas Special: Simpsons Roasting on an Open Fire - S1-E1

Homer: [buying a chewtoy for Maggie.] It says it's for dogs, but she can't read.

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Trivia: The Simpsons holds the record for most guest stars; it is also the only non-variety show to have had appearances from three former Beatles (Paul, George and Ringo).

Kara
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Question: Which episodes feature the "Howling Dog" (usually used on outside shots of buildings)?

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