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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Homer's brain: It's simple, just use reverse psycology.
Homer: Reverse psycology? That sounds too complicated.
Homer's brain: Alright, don't use reverse psycology.
Homer: Alright, I will!

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Trivia: The only voice artists who regularly perform as only one character are Yeardley Smith as Lisa and Marcia Wallace as Edna Krabappel. Yeardley has also voiced different versions of Lisa (Lisa Jr. and Lisabella) in at least two other episodes.

He's My Brother
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Question: Which episodes feature the "Howling Dog" (usually used on outside shots of buildings)?

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